[Openstack-stable-maint] Stable check of openstack/oslo.service for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/2c8a324e59084705b6327fd73833cf... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1d671a2a1a89491589338b9aafb7870c : SUCCESS in 3m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8604319412854d64a001f7676f3c568a : FAILURE in 3m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/78d9315c43834eef86f0a82c665fe3c1 : SUCCESS in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/df24f1c5445748feb3d238c634bd8dd2 : SUCCESS in 4m 31s