Build failed. https://zuul.opendev.org/t/openstack/buildset/75435497b438459ab14e3a382d65ec72 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ae5c3af67762495fb79b41386d1c889b : SUCCESS in 4m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/91eff26f865b42ac91271e90f8004bdc : FAILURE in 2m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c4974ec1b568468ca5dde41cd4ab84ec : SUCCESS in 3m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/feeb95316b134c05bbd337e0fc5cae7d : SUCCESS in 3m 36s