Build failed. https://zuul.opendev.org/t/openstack/buildset/7ee91f8b72384aa3b621d939f766407b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/885a9e57847a4d309350b43aefc0ddb2 : SUCCESS in 13m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/94b6bf6936e54ae195a2211dd48aa8a7 : SUCCESS in 9m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/01e4100cde35449c92787e2dc38207a5 : FAILURE in 8m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5cb175907e4e4d76b1c6307086cd9ff9 : SUCCESS in 10m 34s