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

Build failed. https://zuul.opendev.org/t/openstack/buildset/85da696e29644c5aa95c7d7d0a0bd5... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9f6024626ac14aefad295a6f56869998 : FAILURE in 3m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1d8c517e9ad44bfbb2db82d392cc8394 : SUCCESS in 3m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c6bac367c2b84d5486eef840f011bb33 : SUCCESS in 5m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/95cd6f501f594b918cfe47949b5de393 : SUCCESS in 3m 51s