Build failed. https://zuul.opendev.org/t/openstack/buildset/8fe06bf6c3274bb69aeac8b89dc06269 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d4045966b4be4f39bdcf23f03e88a085 : SUCCESS in 3m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9af758e49e5242c6a3ed85b8f292ee24 : FAILURE in 2m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7194a035906944428ab07a2247860c55 : SUCCESS in 4m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0733ab13afe14a9e8cef925481784a6b : SUCCESS in 4m 25s