Build failed. https://zuul.opendev.org/t/openstack/buildset/0d1abc5f78374598bde86a8524ca96c8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5572c96add65412c9591ab990f321e3a : SUCCESS in 4m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/472fbc5fde7849f5ba297f7384a6b37f : SUCCESS in 7m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a998fc9b51d64aafa2fdb2b462525b53 : SUCCESS in 6m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/23e55495f13042daa10e7ad7f439f657 : FAILURE in 7m 06s