Build failed. https://zuul.opendev.org/t/openstack/buildset/74017e7bfec44e56b99572577ee02d10 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/37d97451361d426d83b407c7db724983 : FAILURE in 4m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1a30f75c4ed34ba0a3b8c148096d18c7 : SUCCESS in 3m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a59a7ceb41b54bb1a3aa354178a2720d : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6ed75b9033ae4dda8ab829de36481411 : SUCCESS in 4m 31s