Build failed. https://zuul.opendev.org/t/openstack/buildset/847b6df0de05463c9dd03b391a58bf7d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e6f163b77cf746f987060e348426bcd1 : FAILURE in 6m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/eeb91bf9f6ae48848246716b63d4f6f1 : SUCCESS in 4m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cd9216283c92477cab5306dad8ff9886 : SUCCESS in 6m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/aceeb030ca47434bb0ba5ed8f1583273 : SUCCESS in 6m 58s