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

Build failed. https://zuul.opendev.org/t/openstack/buildset/5158cf1ab76f4e648eb34c787d7070... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/18538f6863474f85b51a2a9efea1d6a9 : FAILURE in 3m 30s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7705ae1412974e588b217fa493362185 : SUCCESS in 6m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/77fb466a2fb545b89d5ee85e29ba9879 : SUCCESS in 4m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d4b4aa00852a4638b8824169861f4356 : SUCCESS in 3m 19s