[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/9d7f398fa6504e6aa86092f996dfc7... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cd05e3e429024c27b1666a77ad377d98 : SUCCESS in 3m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a2f5effd39954d038f2da5ec2a7a1710 : SUCCESS in 3m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9a26d67a1c904a9bb8e362125b142a68 : FAILURE in 2m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f9e514e16c1f4267bbf82e1aebcc1ca6 : FAILURE in 2m 45s