Build failed. https://zuul.opendev.org/t/openstack/buildset/4a12de6c792d4fb28978308200b3d1ea - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c94df34425044485bddccac3d937cd09 : SUCCESS in 4m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8ac3dd2fe14345b9b56201df33b1ab27 : FAILURE in 2m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0b67f300ff534c4faa42990496f739f8 : SUCCESS in 3m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e9546c22a6df41758d26f4c4f56e36b4 : FAILURE in 3m 36s