[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/f37fee82166c4216b04ecec04b24cb... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/04a183cf70bb4708b17496035f4eec81 : SUCCESS in 4m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e83412be41cc413ebb1e5816cf678a5d : SUCCESS in 3m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7dcd81553cdb4a549e884881b0b5b929 : FAILURE in 3m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/eb3f7d2ab082444997c45410f311b1a8 : FAILURE in 3m 05s