Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f4f279c2179b48e2bdc1a157fc681b52 : SUCCESS in 6m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7f7f27ae5fe741e39b7eb18c14a1ba71 : SUCCESS in 7m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/506c3ff3872f48cb825bc55c95021ac8 : SUCCESS in 8m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fd9a23a7604c4d228179ec6fc263d561 : FAILURE in 4m 27s