Traceback (most recent call last):
  File "/usr/sbin/update-apt-xapian-index", line 102, in <module>
    indexer.incrementalUpdate()
  File "/usr/lib/pymodules/python2.7/axi/indexer.py", line 643, in incrementalUpdate
    return self.rebuild()
  File "/usr/lib/pymodules/python2.7/axi/indexer.py", line 692, in rebuild
    self.buildIndex(dbdir, generator)
  File "/usr/lib/pymodules/python2.7/axi/indexer.py", line 668, in buildIndex
    db.add_document(doc)
DatabaseCorruptError: Couldn't reread base B