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

Build failed. https://zuul.opendev.org/t/openstack/buildset/3a8a764217ff401eb61eb9fe529f49... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5b70207f996646fd8a9a0117aa9c75bc : SUCCESS in 12m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9e52ae6f78934b2f95ffb2aae4434b43 : RETRY_LIMIT in 2m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a7d2c035795b40edbc150eeeb917a1eb : SUCCESS in 7m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/da08b6c3c78c41d3af8055bdd19537ac : SUCCESS in 10m 15s