Build failed. https://zuul.opendev.org/t/openstack/buildset/73f6ac4b6366456b9197c69c713f92ca - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3a558bb9d6734511bd5259f40bf90e49 : SUCCESS in 4m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d284294ce2184db9898cebb156f773ef : RETRY_LIMIT in 1s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fcc60a35f3834948a053e388d4d4963a : RETRY_LIMIT in 2s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bf6cbdafb758474dbd5ebdfea5453a82 : SUCCESS in 7m 35s