[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/906a118c477a4591909c91b17e4a26... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2c2382e75813439bb46062be840d5136 : SUCCESS in 3m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0ed94817380546ef97d098b847571ec1 : FAILURE in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b157e7b3111c48548c2aadf7f6b3babd : FAILURE in 2m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/05d305e40a7e4d6aa7c671ef1928dcb9 : FAILURE in 3m 00s