Build failed. https://zuul.opendev.org/t/openstack/buildset/e3069ecd1b9d4eaba6baf56eec6e0612 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/38ef489c5c2f4b34b1e1d24b80d4b46f : FAILURE in 5m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fc3a275cab3f439c9af260d26f67cee4 : SUCCESS in 6m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b9bad5d917bc49b8b409fb32286b0bad : SUCCESS in 8m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c1466c38ceb14e12b2ef82846de0d538 : SUCCESS in 9m 13s