Build failed. https://zuul.opendev.org/t/openstack/buildset/b17c7cb02a9c409ebfb1089b4ea5552c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/92de03c892a7407d8dbd062b16a70687 : SUCCESS in 3m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f85156ff3b894bd8bf5b556aa9c70df4 : FAILURE in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1c78c8bc185e4cae9e4509ad6c763726 : SUCCESS in 3m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bf40ca94a4c542a69a4da10e54e72bcf : SUCCESS in 3m 49s