Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1220b9a1502d49479f2d73c31fd29937 : SUCCESS in 19m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6941006cfd344a148480e1d63ecfc3df : SUCCESS in 16m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d61d57c35baa46e89bbf7b9e62e9ab55 : SUCCESS in 12m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/006ee72f2c804bef8a300f62a9c7a7c9 : FAILURE in 18m 26s