Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0a513a01764947e79391c0c6b0bd91f2 : FAILURE in 6m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c8a9d03c10b8474999c9870122c2b215 : FAILURE in 6m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6cc6ea36d6be4422ab6ba305bbccea8e : SUCCESS in 6m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/28d128bf5b60454c9d475f9187b7db30 : SUCCESS in 7m 21s