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

Build failed. https://zuul.opendev.org/t/openstack/buildset/74f08c718d804fd7a52c41495387f2... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c748a1ff7055498da075df5743943f18 : FAILURE in 3m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/39a12ca13fae4c8cb31b62df2d291afc : SUCCESS in 3m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2a0b929e2c774be790b9ce9adb8121a2 : SUCCESS in 4m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8d352af186d0476f8d5023d56e4e5621 : SUCCESS in 3m 49s