Build failed. https://zuul.opendev.org/t/openstack/buildset/f70a8f93f1a6403a8586e3546ec5a424 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6edc2f75568d4b39aa3a722cd63bb2e8 : FAILURE in 4m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/149e3910a3224a739b65a4d644c21b81 : SUCCESS in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/da1863f6b653464c9238300288498f18 : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/47bac4a6d62544988d25ec3f04c5bec3 : SUCCESS in 7m 06s