Build failed. https://zuul.opendev.org/t/openstack/buildset/a83e9c9d4edb458587f230e2d56896b9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5fd93214f8144d6880542841315d8102 : SUCCESS in 3m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8068da58dfa241eea72b014580e93966 : FAILURE in 5m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/95ce68f995a3401e866d7600c97054f6 : SUCCESS in 2m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4edd435c88074376a14005b7deed7ca7 : FAILURE in 3m 48s