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

Build failed. https://zuul.opendev.org/t/openstack/buildset/8527f2df8a4e48f4b5a4ae1a282ee3... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fc049bddba344a33816ff2ce4282498a : FAILURE in 3m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/274f95bdc5d14d4b814a0f3b75aac407 : SUCCESS in 3m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d2ec4bb8dbbd44a7a3e9dba653456911 : SUCCESS in 3m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b7ca1b1dad084993bb2a44005cd15ea7 : SUCCESS in 4m 00s