Build failed. https://zuul.opendev.org/t/openstack/buildset/4569617c93bf410cbc041b87c549ffb5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9903bee501e64d20b849c33b2641ba55 : FAILURE in 3m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4f0cf58a14794039a3014618d35a47ad : SUCCESS in 2m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e93146aef2c34c878c450b81542f8061 : SUCCESS in 2m 51s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/06c1642fdd0d4ce5918a2bffe5d6ff0f : SUCCESS in 3m 10s