Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/81f2145e0a5a42cc83f35da88612150d : SUCCESS in 10m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/86264a8df9f54d1b9d114bdea3eb957e : FAILURE in 9m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b6e88444c4fe4fb0915e98a7b69ab5c1 : SUCCESS in 9m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/aa0c6e453f4743a9bc96d4e52795bcda : SUCCESS in 7m 08s