Build failed. https://zuul.opendev.org/t/openstack/buildset/6b798d1a4739451f83ba765690a00e04 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/db028c6af23443b39862cc3f70e38802 : SUCCESS in 5m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/37524a392311439bb92d56193d06f1f1 : FAILURE in 2m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d2145068e6a1412e91af1fa33b36afba : SUCCESS in 4m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f054c17a0547415c861bd84372f85e92 : FAILURE in 2m 28s