Build failed. https://zuul.opendev.org/t/openstack/buildset/e18ec6dfd42a482e99819e4e3f2fb5ee - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b6efad8691e540aeba5a3329f0c75dad : SUCCESS in 4m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f4eb7b7fcf3d4e788088aeb2280f576d : FAILURE in 4m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e3c1495ffe1848518abb270e4d5c439c : SUCCESS in 4m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/04b8dafd031445ddb131f7ca8ae59c76 : SUCCESS in 6m 22s