Build failed. https://zuul.opendev.org/t/openstack/buildset/b0c5b28f327d4c1f9082388ac2c92666 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/50d9775443e8460584814a51d7c968a2 : SUCCESS in 3m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b4eeb9fb62bb470fa8af193b36920d11 : FAILURE in 3m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/05f272bcb7f242ab8084b54e4c7c5fed : SUCCESS in 3m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2275d73d445d445c8ac897698c4e396b : SUCCESS in 3m 23s