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

Build failed. https://zuul.opendev.org/t/openstack/buildset/2e26f0c271f44735bc135e13c1f469... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f163ee943e12415a8c3c4f8a4c0df5d8 : FAILURE in 3m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/32b99bd7577140299ef3111b35a120e1 : SUCCESS in 3m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d7214f2ffb2b45b3941ed321cb2c3544 : SUCCESS in 2m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/250b4572bb634d20aa280f200b1e3aba : SUCCESS in 4m 11s