Build failed. https://zuul.opendev.org/t/openstack/buildset/bd21c792977849d8afb79e0bc2c37177 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/32326312a19a4c59a5bf415deee81a5f : FAILURE in 6m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2c4d18d1c2e94c0ebcd41fb344808628 : SUCCESS in 5m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/27ac475a156f4ffc92b1f4abe8a9e236 : SUCCESS in 5m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d8a71a55b856459883341b9428f0a318 : SUCCESS in 6m 12s