[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/de84d06926bf45d8913d62d947a0a1... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b9dc645ac3ce4dcab3313aad6b85c972 : SUCCESS in 3m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ae9cfd16daba4853bd6bd1ff5794b721 : SUCCESS in 4m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/24566efac2664f76ade2f798a728cebf : FAILURE in 2m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fcfb7b6748864efc8c6ba8f7eca1f6f3 : FAILURE in 2m 57s