Build failed. https://zuul.opendev.org/t/openstack/buildset/fafa19aef05344aba8a71ee5e36b6c55 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ee787a169a454d3ba9992ca9bb0bfb55 : SUCCESS in 4m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/934e5fd9a63e4ee1a308f7d25610a351 : FAILURE in 3m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3559ebeae8f246a0aa2272196cac3a45 : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/98f45a206d454a05be3d79558b55ff22 : SUCCESS in 4m 06s