Build failed. https://zuul.opendev.org/t/openstack/buildset/68e4bf5eabb04f899de53c81acc22f06 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2e71a177571340e2a2a6da64c53ec15e : FAILURE in 3m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d9635b14370348f5adf4d0e6f3e3a3df : SUCCESS in 3m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dc556b74d4a447bb8be8567dc1af6ca4 : SUCCESS in 3m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d93984f743934e04bdbcee00f362dc31 : SUCCESS in 3m 19s