Build failed. https://zuul.opendev.org/t/openstack/buildset/e7f2aaa853d2408cbe5cf072721f666a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/96ca9d8a753e45558c4662aa5c1e33fd : FAILURE in 3m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ad774056899b405bbbd183ba13eca010 : SUCCESS in 3m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/03258ec25e6c4fe488aaf05ad0eff66a : SUCCESS in 2m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3ce797a297b84ecf8fecd803afe4e04d : SUCCESS in 3m 40s