Build failed. https://zuul.opendev.org/t/openstack/buildset/cfb68a83523a4c52a9619a6ac6dec4ac - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/99059eb1d0d84c969373168dccd55d21 : FAILURE in 6m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b91a254490d74fdbb7b7c934be58c70b : SUCCESS in 5m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d35e4ea2342a46ea8ae79c0954a928dd : SUCCESS in 5m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b5ed65ae0c774224be7ec58f0d36743e : SUCCESS in 6m 01s