[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/de511939deb149e0809c49158496e7... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d6804a3bd12c496989d8434bf6d9df6f : SUCCESS in 3m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4be4dd8b0a884588851a03a81081f007 : SUCCESS in 3m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b40329d2a1e543c9ae498788dde59f10 : FAILURE in 4m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3c74cb2986214dac9adc2cdd46cebd7c : FAILURE in 3m 45s