Build failed. https://zuul.opendev.org/t/openstack/buildset/5eb5423036d948c48af95920cca4f4b0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a75b02229dd7451084375c86e3af21e3 : SUCCESS in 4m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7dd1bb7947014148aad157bd8206e032 : SUCCESS in 6m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/629c47b8220449dc8d1a9b286431efcf : SUCCESS in 4m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/864fd23da7154e46beb3af4e31297923 : FAILURE in 4m 08s