[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/93b0366500e14c57bae37f31d54d1c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/25c2ef979f0a400d956c7528bec5ede0 : SUCCESS in 3m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/89ce39a5f6884cea90bc3c778f99f0b7 : SUCCESS in 3m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2f72f7844d2f4cb18200a80d29a349e5 : FAILURE in 2m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d898f8185b3d4312a66d47917546043f : FAILURE in 3m 05s