Build failed. https://zuul.opendev.org/t/openstack/buildset/53d257ea0bb244db8c74b3e7b5add582 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/71484a37c035472dbc0c700ca2650aed : SUCCESS in 3m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5dfe2381f7f248f7aa7101cafabbc7e5 : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1c0df042b9564775b14a1e2bd02abcfe : SUCCESS in 2m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c3e9800ba101453eba89f3dde3b406a9 : SUCCESS in 4m 45s