Build failed. https://zuul.opendev.org/t/openstack/buildset/473cf8caeb294dc192b02ef9b4936fb7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b2477975968f48ce840827a3d4b12ea0 : SUCCESS in 4m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/09b5487c82004e43bdc5f5b80fcd85ff : SUCCESS in 3m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/96202ad849ec4185b057833e26b3ba68 : SUCCESS in 5m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/dc950209b28a4e968456ef0f3cb78834 : FAILURE in 4m 11s