Build failed. https://zuul.opendev.org/t/openstack/buildset/48c08530c3df43dba7451622c8b9793f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/507e4530741c4aceb64a59bce670a293 : FAILURE in 9m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1cdbe138d7464130a76ebb0d0d4d0998 : SUCCESS in 5m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ca85c0fb619340ada2514127e1586443 : SUCCESS in 5m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cbc7c40a69e74c0d9a6f1c7d4d144028 : SUCCESS in 6m 33s