[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/8714daa4b52542598c168c4486bc41... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/69944dcec1984ded85fd6da316c7cabf : SUCCESS in 2m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/dc614c7f7a514182bac119cb8eca9829 : SUCCESS in 3m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/45d5d4c675c04ab4953b32bc61beee49 : FAILURE in 3m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e0ac43bf2a184b25843f7a1ffa2c1346 : FAILURE in 3m 00s