Build failed. https://zuul.opendev.org/t/openstack/buildset/869d623c542a4bd3bf8aee63f1cf1c8e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/71a58e799b164879b4d6b55a792740a3 : SUCCESS in 5m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/80789ff319fc41f1bf8a624d4d9b3632 : SUCCESS in 5m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0acbe88916514f9b9768b166832bfe17 : SUCCESS in 6m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2496ec3a8f0e4c0db1929453879b6c29 : FAILURE in 6m 27s