Build failed. https://zuul.opendev.org/t/openstack/buildset/2dd8437187cd428dac879b2a3ce98bd7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/96ffcf82ca8b4c91b58198935806689a : SUCCESS in 4m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4163cef87f9344fd89e829d65d1aef61 : FAILURE in 3m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1a40801bcb234d71b87980785c70ecd5 : SUCCESS in 3m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/21ff5a02f29847aabb21cd6a4b3571e9 : SUCCESS in 3m 50s