Build failed. https://zuul.opendev.org/t/openstack/buildset/c9fd1ad4b4164dcb989b7b87f1ab1d55 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/294502504422432bb89796e6b8c7459a : SUCCESS in 4m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2194b802b2eb439986377fa8977063c1 : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ed162071288343e19b1c41570bf5b956 : SUCCESS in 3m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/346112150f7f45029e1adcf9f8423678 : SUCCESS in 3m 48s