======================================================================
ERROR: Run archiver on a missing content should archive it.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/antoine/softwareheritage/swh-environment/swh-storage/swh/storage/tests/test_archiver.py", line 195, in archive_missing_content
    self.archiver.run()
  File "/home/antoine/softwareheritage/swh-environment/swh-storage/swh/storage/archiver/director.py", line 75, in run
    run_fn(batch)
  File "/home/antoine/softwareheritage/swh-environment/swh-storage/swh/storage/archiver/director.py", line 88, in run_sync_worker
    task = app.tasks[self.TASK_NAME]
  File "/home/antoine/softwareheritage/swh-environment/.venv/lib/python3.6/site-packages/celery/app/registry.py", line 19, in __missing__
    raise self.NotRegistered(key)
celery.exceptions.NotRegistered: 'swh.storage.archiver.tasks.SWHArchiverWithRetentionPolicyTask'
-------------------- >> begin captured logging << --------------------
requests.packages.urllib3.connectionpool: DEBUG: Starting new HTTP connection (1): 127.0.0.1
requests.packages.urllib3.connectionpool: DEBUG: http://127.0.0.1:34581 "POST /content/get HTTP/1.1" 400 74
--------------------- >> end captured logging << ---------------------

----------------------------------------------------------------------
Ran 159 tests in 82.051s

FAILED (errors=1)