Build failed. https://zuul.opendev.org/t/openstack/buildset/1303718bdcad42e99bfff5ec91ee8c24 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6a2dd6129517438f8423b3c3af051edb : SUCCESS in 2m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c530ccaf788f45a9ba93f54dcb469566 : SUCCESS in 4m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1d8c4d0989dd4dd1a83ed073b7c98a4f : FAILURE in 3m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4616bd49cd654b56a7b8f4a06a5a7438 : FAILURE in 2m 23s