Build failed. https://zuul.opendev.org/t/openstack/buildset/a800c5c27b3e488e9576d8a3857b6687 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ad765828aaea43548fc00118ed954531 : SUCCESS in 3m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/79f3377954e9498eae527ce2964f4e17 : FAILURE in 2m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cdd7222d2bee4491bf058fc0c647bbc5 : SUCCESS in 3m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6a9b068da6574675800fafd5899f919a : SUCCESS in 4m 18s