[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/e6dc7cd8ce4f4474854418faa98a6f... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/addc7e274a4244b2b2f57c91dd7528a1 : SUCCESS in 3m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0dfcd1eeff404598a316c4b5d5909f76 : SUCCESS in 2m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5c9cae21b5d24a469160de10dcb97b5a : FAILURE in 3m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f8b8cc5df1db48838627d035f94364ee : FAILURE in 3m 32s