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

Build failed. https://zuul.opendev.org/t/openstack/buildset/eab4986170a94ca886635a120c6724... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9569eda500cf4da194f66c4f9136a1db : SUCCESS in 3m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ea2baa84ccd34f6c8e46d455261c0f1a : FAILURE in 3m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8c139ab3d1f14bb8811e14ef820393d1 : SUCCESS in 3m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/04fca7c2ea074d2f96a6f7740023f16d : SUCCESS in 3m 16s