Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e0a6d7988bdd4c149a596ba9b62172da : SUCCESS in 4m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/263e9f4a5da147b9b05f763908f77465 : FAILURE in 3m 18s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0dacdb41a6684e55a908215137019f82 : SUCCESS in 4m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2b3ba060f2b54c969e19f63dcb4b46cd : SUCCESS in 4m 33s