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

Build failed. https://zuul.opendev.org/t/openstack/buildset/87175ba4ca894f3cbbc56bb318b053... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6ed74ec3b9be4ead8b7c8e72b16126bd : FAILURE in 3m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/83d294187b4f4db0838277c356a86fca : SUCCESS in 3m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c6ae4de047e247d1b0415b14484b7103 : SUCCESS in 3m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/35f95776bbeb4a22b4e089b3517e51aa : SUCCESS in 3m 31s