[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/ea86af783e904697ada9b29402400b... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/63eb89069aa641f5bcd3d1589ee1d104 : SUCCESS in 3m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1390ae347aca4c77877542d47a3ae4b7 : SUCCESS in 3m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/56f6a93e3a11442fbf23b0b35b7f11da : FAILURE in 3m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d2bbe1c956824aec8d65f9325e63b44c : FAILURE in 3m 04s