Build failed. https://zuul.opendev.org/t/openstack/buildset/eed33ab2022240bc8831df4a83ba7980 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/68ceedc0f2cd4acdbaf2382282ff5b1f : SUCCESS in 3m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8a8f98518bec43c3b40c636bcd2fa2ad : SUCCESS in 3m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a093bd1702bb4135a38d0c59b8b9c72e : FAILURE in 4m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a9671fa827b14497bcd48fdeb57ee1c9 : FAILURE in 3m 56s