Build failed. https://zuul.opendev.org/t/openstack/buildset/0fa931668a544f8d82ca85eb8f399d85 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/41b2a3cef99e498ba5f9816b71c4f2ca : FAILURE in 4m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f2c683240df241db8f0f980f36a08ab8 : FAILURE in 4m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b3fcebdd702d4351ac758095e18aa327 : FAILURE in 3m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/39a4e8bec8274a23af22ce64abeab333 : FAILURE in 5m 00s