Build failed. https://zuul.opendev.org/t/openstack/buildset/9b2650a7430046bea27ceb6e689bc3c3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/629b648fe3b84b84893b5d8f2a690c6a : FAILURE in 6m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6e4c3921fa4343b196b6d00cfa95c33d : SUCCESS in 5m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e461f6c66f954eee87fa4a824350b67b : SUCCESS in 6m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f217295f54324085bd20ada44e2371ca : SUCCESS in 6m 24s