Build failed. https://zuul.opendev.org/t/openstack/buildset/4a4cb8fc1c6d4da5beecb98b3b82129f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e64b4ca7c8f94a88ab134a3b512bb5ee : FAILURE in 3m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4cc6e5d988c34a309e52191ce5b69fd6 : SUCCESS in 2m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/96be4d5601a341509651c4a7c9738b7d : SUCCESS in 3m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/973b63a83eb2414388a80adef6c130b2 : SUCCESS in 3m 11s