Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/edfc809c60bf4494a86d2b2c8e704d7f : SUCCESS in 4m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/14e8f380bd024fa2b2919eb97510e4ed : FAILURE in 3m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/683b9fb2eac54af8a2300077dcc1791f : SUCCESS in 4m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fcd993fc6fc046de935f8c0f5da37279 : SUCCESS in 4m 21s