[Openstack-stable-maint] Stable check of openstack/cinder for ref refs/heads/stable/train failed

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/59f1b74c1ab54ab88468ae8c6c8c79f2 : SUCCESS in 17m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/df4c3e0a790245538842eadc08eeb39d : SUCCESS in 13m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d534ff3bdfa74287b40a898019a0bd86 : FAILURE in 11m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e16d9ba2513d4ee8840b841b22475a4d : SUCCESS in 11m 59s