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

Build failed. https://zuul.opendev.org/t/openstack/buildset/2fcd8248b90f4206a8cd882721f0d8... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b238b2d777b24d9b95ff0ffbc0e01446 : FAILURE in 2m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ad87fcbb9806457090fb6be45d5ff945 : SUCCESS in 2m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/81ec6027d8df4e9fbce393aaafa16d4d : SUCCESS in 3m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/279663dcea7c442caa083e63acb9d2f8 : SUCCESS in 3m 43s