Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ff04d823bd9f40ef989f2982ee417287 : SUCCESS in 6m 30s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/185403ab1efb4368b9f031cc10f71baa : SUCCESS in 5m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/156aef21a1b1404c94e04fa236adda47 : FAILURE in 4m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/800b3cc81e06435882b6ec027e5d07ad : FAILURE in 3m 42s