Build failed. https://zuul.opendev.org/t/openstack/buildset/87fbe822eef84cb7b849b6975caad441 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ff853bb788ad4369ba80844f7ac6b379 : SUCCESS in 4m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bf4b61d9a38f4223b079e0f0e9cc948a : SUCCESS in 4m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/914fb3995d6a4cd3b211968a0cb538b1 : FAILURE in 4m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9f2f3a0a4df142a6961a72d3ce1b9fdd : FAILURE in 5m 18s