Build failed. https://zuul.opendev.org/t/openstack/buildset/abb0c370cda14c6c8bdc484c8c98edf5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ecf0ef4c5f744e27b3ff91786db22c43 : SUCCESS in 3m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bf8a93a08d844f6fbe3b73fb467c5e41 : SUCCESS in 5m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f148489d8e504584a27c9c46a71ebf5f : SUCCESS in 5m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/afa365c9f88c4d0db4fe335e71c46b49 : FAILURE in 3m 53s