Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7f8449c79b2b4c56991600ae3bf74f34 : SUCCESS in 5m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bac46c0612e74630b8ec4071ba46ed10 : FAILURE in 6m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c689cc8fce1246199f127edbb8ecc24f : SUCCESS in 10m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/825e3fc4e1844d859f7d523afe592234 : SUCCESS in 10m 29s