[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/d56e40ff1c5b42308a51bbc01204e5... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/78470da9530a409193d8dd7cebfd3bd9 : SUCCESS in 3m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/19ad3494ceb54714ae18b12fe9cd36d8 : SUCCESS in 4m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f275dac0c11b4758bd80b6feb69f491d : FAILURE in 3m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/aef6e31d92b54b27bc8353b4ab6ee0df : FAILURE in 2m 43s