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

Build failed. https://zuul.opendev.org/t/openstack/buildset/aebd4b72d0ac42b8ae69f1de2eb669...

- openstack-tox-docs https://zuul.opendev.org/t/openstack/build/83515de9e3934bb99fa4657698f96b1e : FAILURE in 6m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4a62336d161b43d4835d9ff7371bef52 : SUCCESS in 5m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0a3fe6eb35a6410589ef4039a16d34cc : SUCCESS in 6m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f1ef2b76c1984b76bd73be47e7f17b23 : SUCCESS in 5m 40s