Build failed. https://zuul.opendev.org/t/openstack/buildset/1b81b5239b0645539a6dc21772e75a95 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7186117930ed450da5864725fb007d9e : SUCCESS in 4m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/475fe02078dd463cbcea63fae4b0d803 : SUCCESS in 3m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/31e09cb4972b40f3b5976917a108a5cf : SUCCESS in 3m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cf630352f3064a1bbac85fc25aea6120 : FAILURE in 3m 12s