Build failed. https://zuul.opendev.org/t/openstack/buildset/de3f570e25b243fa86c67b9ce5b13682 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/845148c34cba4578bdd2a91090684ab6 : SUCCESS in 9m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b043f1b0320a409e86e87b884d482062 : FAILURE in 3m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/63e647549da74c419110bf07e76ef77c : SUCCESS in 7m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/976b214c38da49ffa1ef034d7a9e3d06 : SUCCESS in 8m 04s