Build failed. https://zuul.opendev.org/t/openstack/buildset/3105311f1a114e1fbc2be46825f325d9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c349df3641584a3abbc5c31b702381bf : SUCCESS in 3m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/43b84a518a214f93b717535d7c4758cd : FAILURE in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fa8e6c8bd04d4af8af71e15eaaa27646 : SUCCESS in 3m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5e14f991b2784fd18d57d8603c105786 : FAILURE in 2m 49s