Build failed. https://zuul.opendev.org/t/openstack/buildset/31b0611af52b47baaeea6108bc0219e8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b51247cdf6584995b3452fd9ba5a7548 : SUCCESS in 3m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f003ff00a12741bca7815e2a74e6fff5 : FAILURE in 2m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c820d8da105e43839a0957d3f97c9c55 : SUCCESS in 2m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/930702948e0b49f29c89e8e6b70f5dbc : FAILURE in 2m 59s