Build failed. https://zuul.opendev.org/t/openstack/buildset/d1c3ff14dbf34c06b844195af331bd42 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b478fcf928ec4ac187bec6e4cf8b4fda : SUCCESS in 2m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f2ab449a92d54f9cbf783251329325b3 : FAILURE in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1b258d795ec5452ebb7245634674ab20 : SUCCESS in 2m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7f05825206d3428abb38ea2b3b1ef03e : FAILURE in 3m 04s