Build failed. https://zuul.opendev.org/t/openstack/buildset/3403005920724ba8aefc30daf0c9cb57 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3d8e2e302073401483691f780bf80aa4 : SUCCESS in 4m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ed1bf129eefd494cae4e8b140698cb05 : FAILURE in 3m 03s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b981a26c9e224fd8b19171084d033c4d : SUCCESS in 3m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7bc19f902fa8457db547c36fada244c7 : SUCCESS in 3m 37s