Build failed. https://zuul.opendev.org/t/openstack/buildset/1a9776eeeb6745219763eae41653efb6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a8e16eede2664939bc48e53c5294f2da : SUCCESS in 3m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/62020bc12ca64d7c8d5c57ac5d149bdf : FAILURE in 3m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d3a52f8c335e4edeb0698727fae932c7 : SUCCESS in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/470f7089c1be414d9badb4cb72315fb3 : SUCCESS in 4m 06s