Build failed. https://zuul.opendev.org/t/openstack/buildset/943bfa45f1c748e7976a6fbfe6fbe9b6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3295d62f13214606be0649ef0656e6b1 : SUCCESS in 4m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ef706f3492f7407f93737ff263191122 : FAILURE in 4m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5c70c567b72d4b79b5d4db982e17630a : SUCCESS in 3m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f9df2a9d85f148b29f2aef0e2efc9da8 : FAILURE in 3m 37s