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

Build failed. https://zuul.opendev.org/t/openstack/buildset/2715a6ca12f64342b6462e28a851c3... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d8516d04a6b541829d8e65a12f6c290f : FAILURE in 3m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7125dfa684d04f96b92668d290fcd515 : SUCCESS in 3m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3851f1be19004aa0bb018e388b111c60 : SUCCESS in 3m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/07893f354eb34074be652b766b51b292 : SUCCESS in 3m 37s