Build failed. https://zuul.opendev.org/t/openstack/buildset/9feaea79be354b67bf7360754522d985 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/227a8501385d4d068bea63508902aa72 : SUCCESS in 4m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7cb319868e3341d48bcc1e69e0b1a7f5 : SUCCESS in 4m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bdad5e2afacd439e8e2201c485b394e0 : SUCCESS in 4m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9896f900a04e46f3958fda951631bf1a : FAILURE in 3m 58s