Build failed. https://zuul.opendev.org/t/openstack/buildset/ebaf049e423a48fbba4708d606927059 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8114c7da5a2e4f548dccae4619bc75be : SUCCESS in 3m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6314cb8fe85c4b8e80544969c31d0ed2 : SUCCESS in 2m 57s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/664882069e7846eba191a9c4f4e70e0c : SUCCESS in 2m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3081cf1d828b47e7abd2a7b71418fbb4 : FAILURE in 3m 34s