[Openstack-stable-maint] Stable check of openstack/oslo.log for ref refs/heads/stable/train failed

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/117b6ad900664b6699efa2341c49210f : SUCCESS in 5m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/683450a390c84e4fac5b5c89e9756491 : SUCCESS in 6m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8f029139121f42a09c08823747dd64ee : FAILURE in 6m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0d269db13d874c3787267518a33148e1 : FAILURE in 6m 30s