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

Build failed. https://zuul.opendev.org/t/openstack/buildset/ae16e0c1a6c84be89ea066b8112a1e... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8741c72dd044483bbb6bccae4eee06e3 : FAILURE in 3m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bb7e45512c4c4e2f886aa386a0cb2659 : SUCCESS in 4m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bf5d05e434854b21b254e1c46a93d4fe : SUCCESS in 5m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f6b6ae341302406baefe1d040dd2a286 : SUCCESS in 5m 55s