[Qa-jenkins-scm] Build failed in Jenkins: janitor-worker #587

[jenkins at jenkins.debian.net]

See <https://jenkins.debian.net/job/janitor-worker/587/display/redirect>

Changes:


------------------------------------------
Started by timer
Running as SYSTEM
[EnvInject] - Loading node environment variables.
Building remotely on osuosl-build167-amd64.debian.net (osuosl167 amd64) in workspace <https://jenkins.debian.net/job/janitor-worker/ws/>
[janitor-worker] $ /bin/sh -xe /tmp/jenkins12755373850392610909.sh
+ /srv/jenkins/bin/jenkins_master_wrapper.sh
Opening branch at https://salsa.debian.org/science-team/sagemath.git/
Using cached branch https://janitor.debian.net/git/sagemath/
Total 691275 (delta 550251), reused 663682 (delta 524877)
21)
Total 821 (delta 620), reused 759 (delta 558), pack-reused 0

debian/8.0-10 does not point to a valid object
debian/8.3-2 does not point to a valid object
debian/8.3-3 does not point to a valid object
debian/8.3-4 does not point to a valid object
debian/8.4-4 does not point to a valid object
Elapsed time: 0:11:52.610688
Traceback (most recent call last):
  File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/srv/janitor/debian-janitor/janitor/pull_worker.py", line 436, in <module>
    sys.exit(asyncio.run(main()))
  File "/usr/lib/python3.7/asyncio/runners.py", line 43, in run
    return loop.run_until_complete(main)
  File "/usr/lib/python3.7/asyncio/base_events.py", line 584, in run_until_complete
    return future.result()
  File "/srv/janitor/debian-janitor/janitor/pull_worker.py", line 396, in main
    possible_transports=possible_transports))
  File "/usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/srv/janitor/debian-janitor/janitor/pull_worker.py", line 173, in run_worker
    possible_transports=possible_transports) as (ws, result):
  File "/usr/lib/python3.7/contextlib.py", line 112, in __enter__
    return next(self.gen)
  File "/srv/janitor/debian-janitor/janitor/worker.py", line 864, in process_package
    pick_additional_colocated_branches(main_branch))) as ws:
  File "/srv/janitor/debian-janitor/silver-platter/silver_platter/proposal.py", line 305, in __enter__
    self.resume_branch or self.main_branch, overwrite=True)
  File "/srv/janitor/debian-janitor/breezy/breezy/git/workingtree.py", line 1227, in pull
    show_base=show_base)
  File "/srv/janitor/debian-janitor/breezy/breezy/git/workingtree.py", line 1213, in _update_git_tree
    show_base=show_base)
  File "/srv/janitor/debian-janitor/breezy/breezy/merge.py", line 1915, in merge_inner
    return merger.do_merge()
  File "/srv/janitor/debian-janitor/breezy/breezy/merge.py", line 659, in do_merge
    merge = self._do_merge_to()
  File "/srv/janitor/debian-janitor/breezy/breezy/merge.py", line 640, in _do_merge_to
    other_branch = self.other_tree.reference_parent(relpath)
AttributeError: 'GitRevisionTree' object has no attribute 'reference_parent'

SSH EXIT CODE: 1
Build step 'Execute shell' marked build as failure