Traceback (most recent call last):
  File "/usr/sbin/update-apt-xapian-index", line 102, in <module>
    indexer.incrementalUpdate()
  File "/usr/lib/pymodules/python2.6/axi/indexer.py", line 632, in incrementalUpdate
    return self.rebuild()
  File "/usr/lib/pymodules/python2.6/axi/indexer.py", line 681, in rebuild
    self.buildIndex(dbdir, generator)
  File "/usr/lib/pymodules/python2.6/axi/indexer.py", line 657, in buildIndex
    db.add_document(doc)
DatabaseCorruptError: Failed to unlink /var/lib/apt-xapian-index/index.5/postlist.baseB: No such file or directory