[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/4df0f66c5a224cdeb4ab96af94f567... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3da63f1cb4cd48a9bd50d2c0122e954e : SUCCESS in 3m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8c23ff4ff05b431cb5c4bfb206e61b78 : SUCCESS in 3m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0868c82d210a4ed0aec6a1450f20ab7f : FAILURE in 4m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/69beff03834d425c856191a47025b1f0 : FAILURE in 2m 46s