[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/a93e4222fe4249b6967206f273a222... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2ba5afa06250404697488c9d16d18de8 : SUCCESS in 3m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b445112a6f8f42c38071250f1f36d865 : SUCCESS in 3m 18s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/876ada4d2e5f43a3bd1c1e69e1fe46f5 : FAILURE in 2m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9ad285af92fa4364882f1732e03ccbbf : FAILURE in 2m 28s