CI broken in 035/042/043/044 because of stem failure

FAIL: test_get_listeners
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Traceback (most recent call last):
  File "/home/travis/build/torproject/tor/stem/test/require.py", line 75, in wrapped
    return func(self, *args, **kwargs)
  File "/home/travis/build/torproject/tor/stem/stem/util/test_tools.py", line 701, in wrapper
    result = loop.run_until_complete(func(*args, **kwargs))
  File "/usr/lib/python3.6/asyncio/base_events.py", line 484, in run_until_complete
    return future.result()
  File "/home/travis/build/torproject/tor/stem/test/integ/control/controller.py", line 976, in test_get_listeners
    self.assertEqual([('0.0.0.0', test.runner.ORPORT), ('::', test.runner.ORPORT)], await controller.get_listeners(Listener.OR))
AssertionError: Lists differ: [('0.0.0.0', 1113), ('::', 1113)] != [('0.0.0.0', 1113)]
First list contains 1 additional elements.
First extra element 1:
('::', 1113)
- [('0.0.0.0', 1113), ('::', 1113)]
+ [('0.0.0.0', 1113)]

Looking at https://travis-ci.org/github/torproject/tor/builds it seems like 035/042/043/044 builds have been broken for a while. Seems like https://travis-ci.org/github/torproject/tor/builds/711107611 has been the last 043 build that succeeded, and https://travis-ci.org/github/torproject/tor/builds/711107611 is the one that failed after it.