Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5fa2333135574b08a4acb1def15ee892 : SUCCESS in 6m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e07188a9afd54b6e8e74f5b23e61193d : FAILURE in 6m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/49a4eb975e794c2a8082d35e66e11845 : SUCCESS in 7m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fcfaf23ea18a4cf199514b09257c98a2 : SUCCESS in 7m 36s