Build failed. https://zuul.opendev.org/t/openstack/buildset/3a3b00fccd134fb3b4cb6167f755c32a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ae142806bf7744d59a418d40ea318294 : FAILURE in 7m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6ca73a295525486bb095dc68dd7bc45f : SUCCESS in 5m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/985f699a17f04898804141f92da09e86 : SUCCESS in 5m 30s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/95f2ca5f112f4e4ca752f93bee30234c : SUCCESS in 5m 41s