Build failed. https://zuul.opendev.org/t/openstack/buildset/46ce411e53354a74918593b6010ac9af - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1f72badec65941f989adbe6eefc10a10 : SUCCESS in 4m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/441ac9a374c8409f8935ff2332973887 : FAILURE in 3m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4a802ef2a7ee4aa88460444193907029 : SUCCESS in 4m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/86ea0c1c3ac44128b1876637c6cc16c3 : SUCCESS in 5m 09s