Build failed. https://zuul.opendev.org/t/openstack/buildset/db6e4f85a530479baeaa45d772e02c6f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/de72919aa6d1480583e5ae15b19143d7 : SUCCESS in 4m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9a8bcab5c51841dea3d450b87fc1aad2 : FAILURE in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bdb6f4350f29433c814cfc4a03a4f644 : SUCCESS in 3m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/eaddf89d6d124cfda7977afa045db9c3 : SUCCESS in 3m 53s