[test_email_no_assignee] HTTPError: 502 Server Error: Bad Gateway for url: https://bugzilla.mozilla.org...

This seems like an internet test where Bugzilla blocks requests from tests running on TC.

https://community-tc.services.mozilla.com/tasks/cwqj5BZxSfWXRuAYxprJ5A/runs/0/logs/public/logs/live.log:

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ERROR: test_nobody (tests.test_email_no_assignee.TestEmailNoAssignee)

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Traceback (most recent call last):

  File "/bugbot/tests/test_email_no_assignee.py", line 12, in test_nobody

    bugids = NoAssignee().get_bugs("2011-01-01", bug_ids=[229367, 400095])

  File "/bugbot/bugbot/rules/no_assignee.py", line 293, in get_bugs

    bugs = super(NoAssignee, self).get_bugs(date=date, bug_ids=bug_ids)

  File "/bugbot/bugbot/bzcleaner.py", line 465, in get_bugs

    ).get_data().wait()

  File "/bugbot/.tox/py310/lib/python3.10/site-packages/libmozdata/bugzilla.py", line 180, in wait

    self.wait_bugs()

  File "/bugbot/.tox/py310/lib/python3.10/site-packages/libmozdata/bugzilla.py", line 191, in wait_bugs

    r.result()

  File "/usr/local/lib/python3.10/concurrent/futures/_base.py", line 458, in result

    return self.__get_result()

  File "/usr/local/lib/python3.10/concurrent/futures/_base.py", line 403, in __get_result

    raise self._exception

  File "/usr/local/lib/python3.10/concurrent/futures/thread.py", line 58, in run

    result = self.fn(*self.args, **self.kwargs)

  File "/bugbot/.tox/py310/lib/python3.10/site-packages/requests/sessions.py", line 589, in request

    resp = self.send(prep, **send_kwargs)

  File "/bugbot/.tox/py310/lib/python3.10/site-packages/requests/sessions.py", line 710, in send

    r = dispatch_hook("response", hooks, r, **kwargs)

  File "/bugbot/.tox/py310/lib/python3.10/site-packages/requests/hooks.py", line 30, in dispatch_hook

    _hook_data = hook(hook_data, **kwargs)

  File "/bugbot/.tox/py310/lib/python3.10/site-packages/libmozdata/bugzilla.py", line 567, in __bugs_cb

    res.raise_for_status()

  File "/bugbot/.tox/py310/lib/python3.10/site-packages/requests/models.py", line 1026, in raise_for_status

    raise HTTPError(http_error_msg, response=self)

requests.exceptions.HTTPError: 502 Server Error: Bad Gateway for url: https://bugzilla.mozilla.org/rest/bug?resolution=FIXED&bug_status=RESOLVED&bug_status=VERIFIED&keywords=meta&keywords_type=nowords&f1=longdesc&o1=regexp&v1=http%5Bs%5D%3F%3A%2F%2Fhg%5C.mozilla%5C.org%2F%28releases%2F%29%3Fmozilla-%5B%5E%2F%5D%2B%2Frev%2F%5B0-9a-f%5D%2B&f2=resolution&o2=changedafter&v2=2010-11-17+00%3A00%3A00%2B00%3A00&f3=resolution&o3=changedbefore&v3=2011-01-02+00%3A00%3A00%2B00%3A00&n4=1&f4=assigned_to&o4=changedby&v4=release-mgmt-account-bot%40mozilla.tld&f5=reporter&o5=nowordssubstr&v5=wptsync%40mozilla.bugs&j6=OR&f6=OP&f7=assigned_to&o7=equals&v7=nobody%40mozilla.org&f8=assigned_to&o8=regexp&v8=%5E.%2A%5C.bugs%24&f9=assigned_to&o9=isempty&f10=CP&include_fields=id&include_fields=summary&include_fields=groups&bug_id=229367&bug_id=400095&f11=status_whiteboard&o11=notsubstring&v11=%5Bno-nag%5D&product=Firefox&product=Web+Compatibility&product=GeckoView&product=Firefox+for+Android&product=Toolkit&product=Core&product=Developer+Infrastructure&product=Firefox+Build+System&product=NSPR&product=NSS&product=Release+Engineering&product=Firefox+for+iOS&product=WebExtensions&product=External+Software+Affecting+Firefox&product=Focus&product=JSS&product=Testing&product=Remote+Protocol&product=DevTools&limit=100&order=bug_id&offset=0

Start with tests/test_email_no_assignee.py and trace the failing call through bugbot/rules/no_assignee.py and bugbot/bzcleaner.py. Run test_nobody and inspect how the Bugzilla request is made; done means the test suite no longer depends on the failing external request or reports this 502.