Build failed. https://zuul.opendev.org/t/openstack/buildset/9bcf7b7490e5487b8a8fa827828a4ede - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8807852ef0c74bf38b987d874a03ea02 : SUCCESS in 3m 41s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/80c4129c72324bbc8a506f638783b348 : SUCCESS in 4m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/657fb626febf421a96f7074ce22cdee1 : SUCCESS in 4m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3dbf26075d91487a8066ee4ba5b8fdbc : FAILURE in 4m 06s