Build failed. https://zuul.opendev.org/t/openstack/buildset/b00c0eacac534ddc89428e9ec254db76 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f5429a827c194807b142645456a7859b : SUCCESS in 4m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f5caa3dafe56459da61fb72c6f3f18f3 : FAILURE in 3m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ddc76b78263d465ab9d8a811674d163c : SUCCESS in 4m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4ebf8d12db8c45b19534cd7549d29370 : SUCCESS in 5m 34s