Build failed. https://zuul.opendev.org/t/openstack/buildset/caf626e557d94dcfb96b1efaf744551a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/73f4673a706d4a56a6fae20470c2e825 : FAILURE in 4m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7bdab1a43ae043c0a25529f131b26a4c : SUCCESS in 4m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ec4e1507cdea465aaec3b0941e10b5d0 : SUCCESS in 4m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3b09abf31ea54c0dbe7ed086fed8663c : SUCCESS in 5m 38s