Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/bzrlib/commands.py", line 923, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/bzrlib/commands.py", line 1123, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/pymodules/python2.7/bzrlib/commands.py", line 691, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/pymodules/python2.7/bzrlib/commands.py", line 710, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/bzrlib/cleanup.py", line 135, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/bzrlib/cleanup.py", line 165, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/search/commands.py", line 41, in run
    _mod_index.index_url(trans.base)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/search/index.py", line 169, in index_url
    index.index_revisions(branch, revs_to_index)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/search/index.py", line 341, in index_revisions
    outer_bar)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/search/index.py", line 389, in _index_revisions
    self._add_index(builder)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/search/index.py", line 402, in _add_index
    self._upload_transport)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/search/index.py", line 1128, in upload_index
    term_indices[len(term)].add_node(term, term_value, ())
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 174, in add_node
    self._spill_mem_keys_to_disk()
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 191, in _spill_mem_keys_to_disk
    backing_pos) = self._spill_mem_keys_and_combine()
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 225, in _spill_mem_keys_and_combine
    allow_optimize=False)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 385, in _write_nodes
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 351, in _add_key
    self._add_key(string_key, line, rows, allow_optimize=allow_optimize)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 328, in _add_key
    row.finish_node()
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 98, in finish_node
    _BuilderRow.finish_node(self)
  File "/usr/lib/pymodules/python2.7/bzrlib/btree_index.py", line 76, in finish_node
    spool = tempfile.TemporaryFile(prefix='bzr-index-row-')
  File "/usr/lib/python2.7/tempfile.py", line 478, in TemporaryFile
    (fd, name) = _mkstemp_inner(dir, prefix, suffix, flags)
  File "/usr/lib/python2.7/tempfile.py", line 230, in _mkstemp_inner
    return (fd, _os.path.abspath(file))
  File "/usr/lib/python2.7/posixpath.py", line 349, in abspath
    return normpath(path)
  File "/usr/lib/python2.7/posixpath.py", line 315, in normpath
    slash, dot = (u'/', u'.') if isinstance(path, unicode) else ('/', '.')
RuntimeError: maximum recursion depth exceeded while calling a Python object