Build failed. https://zuul.opendev.org/t/openstack/buildset/96c0edd16bf44d478a7e15f55899dce2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f200031686e0434589b665bf5a7b1b84 : SUCCESS in 2m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/661546986f8c47cb86a9a9a28619e3b4 : SUCCESS in 2m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6f85e289a3164e40a684aa9668e42752 : SUCCESS in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/529c9d0f958944ef94351f5e25b8ac56 : FAILURE in 3m 24s