Build failed. https://zuul.opendev.org/t/openstack/buildset/80878803d42b4a64a388ac601fb39cc2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2892d204f7c64d40aaf575a36d5970cd : FAILURE in 4m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/894499d896a14ec8bbb4655a29ca24c9 : SUCCESS in 4m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4223efd1e5bc4546b343b8dc23227637 : SUCCESS in 4m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/86acd32ec60b471fa65a83265cdfa8c8 : SUCCESS in 5m 04s