Build failed. https://zuul.opendev.org/t/openstack/buildset/0a77e831adcb45af886b842bdc69d05b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7be5989f9da64b8f9c8028513ed364f7 : FAILURE in 6m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f5ca4de12bfa474c8b7ee975378ec34b : SUCCESS in 5m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/85203d26ec824cceb17795354f9bd448 : SUCCESS in 5m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6bd029fd1b214d04bdabf34432da2e5b : SUCCESS in 5m 34s