Build failed. https://zuul.opendev.org/t/openstack/buildset/bcd66b218ae24e88bd6822b2626959af - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4b4b6214ed8f4ca89e49f887ef46c45d : SUCCESS in 3m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5aa4af36589f4e19a0ac135d723c108a : FAILURE in 2m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3fd9c4a40c17478eb7dc029901b324fe : SUCCESS in 4m 30s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/deb86f2e9934411d8ef6672fb87f6dad : SUCCESS in 3m 34s