Build failed. https://zuul.opendev.org/t/openstack/buildset/3cfe413783c84f18a9e5b9517066d704 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3cb29cfbabbd457fa93a8cb2fa7fe7e7 : SUCCESS in 2m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/47fafa7f391543e5926b517c2c83d0a0 : SUCCESS in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ea0556ead24b4d63bea0c813dd94cad6 : SUCCESS in 2m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/904fed9678c94ed5aa61d3058ee4eaf4 : FAILURE in 2m 49s