Build failed. https://zuul.opendev.org/t/openstack/buildset/378aa3e117af44299b89729149aeebbe - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b4d5530a8b2d41158cf827d988b37a01 : SUCCESS in 3m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/db27b4d237934943ab8da94f037a4b72 : FAILURE in 2m 27s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/eb4701f6fc7048f5b6a7ebc79a56796d : SUCCESS in 3m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/41647739de104097bba06989c3137400 : SUCCESS in 4m 01s