Build failed. https://zuul.opendev.org/t/openstack/buildset/29aec70c4d6c4c97ae95a17e802f550e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3368d96539f64157a54d88cb1aedfd1c : FAILURE in 3m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/559df815bfcf4cf2a5b5044a4294dc1f : SUCCESS in 3m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2c740fb6701f4189bf223d48ee0f2ebc : SUCCESS in 3m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a13bc0f8ee124ecdb645ca3e720f53a7 : SUCCESS in 5m 07s