[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/8324ac8b0bab463a9482065704bc0cfb : SUCCESS in 4m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9e521ca1d7be4483bbdb4c1f957eff0f : SUCCESS in 4m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d0dd75a672024a8eaa72c9131f33c8c6 : FAILURE in 4m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ffa3a9f75315452d842f411c77809316 : FAILURE in 4m 21s