Build failed. https://zuul.opendev.org/t/openstack/buildset/dcf8977ca23949a7a991071f5159ec09 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ea91542cfaab455e98bee1b80f7ec2a1 : FAILURE in 6m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/779bd65b7f924230b0d1042ece1fdced : SUCCESS in 5m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fdb12ba8b5fd44b6b6eed648ea395f1a : SUCCESS in 5m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f95a4282507940319be11316adff676f : SUCCESS in 6m 21s