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

Build failed. https://zuul.opendev.org/t/openstack/buildset/c57c1541a2f748f9b1c563187dd396... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/27011f37b3ea4fd2a82bebd82be8f458 : FAILURE in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3bd6f6fd509846bdaddab7de2e8a2ae6 : SUCCESS in 3m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b324ce7b1e17458daf8f906f57669bba : SUCCESS in 5m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3ec70522c87447bbb2a7a3d1d7d8f7b3 : SUCCESS in 4m 40s