Build failed. https://zuul.opendev.org/t/openstack/buildset/87b2ad9cf7d249a1a78c1037001d84b8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a990fd6229ad4597a7ee38d1c79089d1 : SUCCESS in 4m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4fd63513910a452a8b51c00d89f20c61 : FAILURE in 4m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9c7ee9a95934496bb2f4bb11611b28a0 : SUCCESS in 3m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7caa8ba9ed4847a69539bd10b3bdbf69 : SUCCESS in 3m 36s