Build failed. https://zuul.opendev.org/t/openstack/buildset/d4eba1bd06274aa19efb91750a43ca5b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/da2f6efb793044c3b9d8770c57c8e0ef : SUCCESS in 3m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3869910496404570aef601ecafe3d1aa : FAILURE in 2m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0dabfb117b594144a0cd5be94d88a47a : SUCCESS in 3m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4d397e5b016a4ad593f8a8069fb0076f : FAILURE in 3m 17s