[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/15d15f5a81f749ef846f6b63f279c3... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/06a8b75e56b94357ac2304a60f10b004 : SUCCESS in 2m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ae20d99923f24759b096fe86f4bd4b90 : SUCCESS in 3m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/90d4a5aa2f92464b9ab062257c5aab49 : FAILURE in 3m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c11195c62a3b4cfeaad4cd5adb26cacb : FAILURE in 2m 47s