Build failed. https://zuul.opendev.org/t/openstack/buildset/152b620c78e54eb1a94068e9a558da1a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0bbccc7b206d434c9c98a0f8eb779818 : FAILURE in 3m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8c6c9606ec864fc5ace5c2a18934504d : SUCCESS in 3m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1d5770f2b34846169adbe3a549345b41 : SUCCESS in 2m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0078782fc73f481994d7b419a7b48d5c : SUCCESS in 3m 20s