Build failed. https://zuul.opendev.org/t/openstack/buildset/94fa636b6fe24b8798404270609d0f39 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0077cfb04e624f6aa289bbaea75d4f5f : SUCCESS in 2m 41s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d87209aaf9594cb69716870f9b4f027e : SUCCESS in 2m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d820daaa7a7a4afe9cd2568368141b34 : SUCCESS in 3m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f940629f3a78480f85dc014a168d4786 : FAILURE in 2m 40s