Build failed. https://zuul.opendev.org/t/openstack/buildset/a1bc244ca7c24cc79ee7525108d2425d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/81868ac9f47147348cac46efae9bfb5a : SUCCESS in 3m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d2c45a4c2ac24018a8431ed7ba1110b6 : SUCCESS in 3m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9ad8b6943f494ed08808c7ac8d388ff5 : FAILURE in 2m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/57048051d63e4e33bc5ecf846b846168 : FAILURE in 3m 14s