Build failed. https://zuul.opendev.org/t/openstack/buildset/a643b84547384afeb36e21b732a916fc - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e6fcf38a39b04e6b918bff6111a73d67 : FAILURE in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f57bc99b62624a829f1f6cdedec28902 : SUCCESS in 3m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/69aa909a930149ccaa96a015407a9347 : SUCCESS in 3m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1b6f6e0b078c49b882434fa29a343f54 : SUCCESS in 3m 55s