Build failed. https://zuul.opendev.org/t/openstack/buildset/48fb3f0e51d84857842aeb8c2587f33a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/aab0fe640cdd448bb7da4a9a8d7bfc83 : FAILURE in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/35a58bc1acee41f0af66b0cf153b0c93 : SUCCESS in 3m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5b5a83a8efd84d6abab5e82381ca9af7 : SUCCESS in 3m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/46cfc9ca3bcd41058d1bb6682dd5b43e : SUCCESS in 3m 36s