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

Build failed. https://zuul.opendev.org/t/openstack/buildset/d33c2dc84e424c248f36d42d5eaa71... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/06eea06d2a5749a7aedac11e165eb4ec : SUCCESS in 3m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f06c0af07e404f9d94a0fecfafb89301 : SUCCESS in 3m 15s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/34f5be5865334923bc105f1490b0fc90 : FAILURE in 3m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/95cdc2e2af114241a60673c7d71653ac : FAILURE in 3m 11s