Build failed. https://zuul.opendev.org/t/openstack/buildset/4498ebba697a43719100fea125a8e73b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2b2d378d7223416082a8b76641608fa3 : SUCCESS in 3m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3365e9cbfc3243868119d5a71da4daa3 : FAILURE in 3m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/630eb324cd10427c9efa785b96c49558 : SUCCESS in 3m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/630c268b27434988866daa80996f2688 : SUCCESS in 3m 26s