Build failed. https://zuul.opendev.org/t/openstack/buildset/4f7ca23c056549b9a43411dae5dadef4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3a8c3b70461946129e70fad5f105f4a9 : RETRY_LIMIT in 1m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3d2f85a1abf34bd899811fd511a21051 : SUCCESS in 4m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/827a1adabe94404eb8060af30fb85d01 : RETRY_LIMIT in 1m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bc4ad3e2501447aa8a1497d8ddce4825 : SUCCESS in 5m 18s