2016-08-08 06:24:49 INFO    Starting job.
2016-08-08 06:24:49 INFO    Getting exising bzr branch from central store.
2016-08-08 06:24:49 INFO    [chan bzr SocketAsChannelAdapter] Opened sftp connection (server version 3)
2016-08-08 06:24:49 INFO    35 bytes transferred
2016-08-08 06:24:50 INFO    [chan bzr SocketAsChannelAdapter] Opened sftp connection (server version 3)
2016-08-08 06:24:50 INFO    Importing branch.
2016-08-08 06:24:50 INFO    Counting objects: 36, done. 0
2016-08-08 06:24:50 INFO    finding revisions to fetch:generating index 0/36
2016-08-08 06:24:50 INFO    finding revisions to fetch:generating index 0/36
2016-08-08 06:24:50 INFO    
Traceback (most recent call last):
  File "/srv/importd.launchpad.net/production/launchpad-rev-18169/scripts/code-import-worker.py", line 96, in <module>
    sys.exit(script.main())
  File "/srv/importd.launchpad.net/production/launchpad-rev-18169/scripts/code-import-worker.py", line 91, in main
    return import_worker.run()
  File "/srv/importd.launchpad.net/production/launchpad-rev-18169/lib/lp/codehosting/codeimport/worker.py", line 583, in run
    return self._doImport()
  File "/srv/importd.launchpad.net/production/launchpad-rev-18169/lib/lp/codehosting/codeimport/worker.py", line 737, in _doImport
    inter_branch.fetch(limit=revision_limit)
  File "/srv/importd.launchpad.net/production/launchpad-rev-18169/bzrplugins/git/branch.py", line 722, in fetch
    self.fetch_objects(stop_revision, fetch_tags=fetch_tags, limit=limit)
  File "/srv/importd.launchpad.net/production/launchpad-rev-18169/bzrplugins/git/branch.py", line 745, in fetch_objects
    determine_wants, self.source.mapping, limit=limit)
  File "/srv/importd.launchpad.net/production/launchpad-rev-18169/bzrplugins/git/fetch.py", line 718, in fetch_objects
    limit)
  File "/srv/importd.launchpad.net/production/launchpad-rev-18169/bzrplugins/git/fetch.py", line 484, in import_git_objects
    mapping.revision_id_foreign_to_bzr)
  File "/srv/importd.launchpad.net/production/launchpad-rev-18169/bzrplugins/git/mapping.py", line 334, in import_commit
    raise UnknownCommitExtra(commit, [item[0] for item in commit.extra])
bzrlib.plugins.git.errors.UnknownCommitExtra: Unknown extra fields in <Commit 8be77aef646cdd0bea636ba324916846573ac10a>: ['gpgsig'].
Import failed:
Traceback (most recent call last):
Failure: twisted.internet.error.ProcessTerminated: A process has ended with a probable error condition: process ended with exit code 1.