Build failed. https://zuul.opendev.org/t/openstack/buildset/8a8ec3b2530a4fd9be6869fda505f8c7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/49668132143548b18cdb9ef8e3b45b19 : FAILURE in 5m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/027217f439b44ec288c0994c2a1a32d1 : FAILURE in 6m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d73626c7a75f4fffaa96774fa55890eb : FAILURE in 4m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/441d5079fa76479192aaca7825eb71b9 : FAILURE in 4m 21s