[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/97ee05bb302040828d7d8588f8f0cc... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ab81a00ba3e446129153097ea3a0ed24 : SUCCESS in 3m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d471e2dfff75461db9f5f7d9467b0372 : SUCCESS in 3m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bb625b3e9c604abe91341b30ba31c99c : FAILURE in 4m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/70aa34cb041347d5b043bb6e587d4b11 : FAILURE in 3m 20s