Build failed. https://zuul.opendev.org/t/openstack/buildset/5cf41f24601d4e85b8f2c758e5323af7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b5c906de0ee54f4291fd05d5c332227a : SUCCESS in 2m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d12a8789a2d1458abb5f65ca31180e83 : SUCCESS in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9b68adb2bb474c628e84458dfceb3e13 : FAILURE in 2m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/36a8557ff2bf4f439682de56c5879a21 : FAILURE in 2m 41s