Build failed. https://zuul.opendev.org/t/openstack/buildset/024c044c8e52428c9dd067a867c5608b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/58286420fe8d458cbd8aed9bc4e4cc93 : SUCCESS in 3m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/281267eb176f4dca98e6ad0b64333269 : SUCCESS in 2m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6746c3eeb06c4d129ac32cd405c7ea71 : SUCCESS in 2m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6535368108f64ce58e837d379a96cddf : FAILURE in 3m 08s