[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/2d16f75f0f65443790e4f35977a339... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0aa045d6ae0040a6823342a90b43acab : SUCCESS in 4m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/86cead8edab341098b8a7599573fe40b : SUCCESS in 5m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/621565fa24c5468d94b5ef5333394470 : FAILURE in 2m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fd642a640a8d4aeba342d45b98328355 : FAILURE in 3m 22s