Build failed. https://zuul.opendev.org/t/openstack/buildset/1f1bbf8b63bd40f5852e42f0ad163824 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7a10a9777c6042cc96665a42f59c8524 : SUCCESS in 7m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d7d7faa9995844c892bb9c6263014959 : FAILURE in 6m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f04b184592d04ca69a7ac7d9894441a2 : SUCCESS in 4m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f8c44e9e4fb74d6db3ff653e511e61c5 : SUCCESS in 5m 24s