Build failed. https://zuul.opendev.org/t/openstack/buildset/7174cc96c9ef463a8ab7edaa87ece97f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5d3b5ca66d2f42bbbe79fab3176dbe9b : FAILURE in 6m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/563e5ba3d38041acb3c118f289dbcde0 : SUCCESS in 7m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8f9c5bba855746b79ad5f0558535b0e7 : SUCCESS in 7m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6ed5cfe5e44644d7af233eb5fe69844e : SUCCESS in 7m 47s