[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/7e0b307b6cf3488b859f5aebfb21aa... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0991c96e0858465c96fec422ad3950d3 : SUCCESS in 2m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1a423770a0184719bc6800a0fed39287 : SUCCESS in 4m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e99195be8c7048e087d9baf384285dea : FAILURE in 3m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ba9db1d3ea3840d8a90df98a51456043 : FAILURE in 2m 53s