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

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4507b5f5996e4b3bbbd8a4377dcab089 : SUCCESS in 19m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c09ff9541dbd4a3d867cb8dff697e629 : FAILURE in 6m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b72f3c1fddf84d2aa768cd9d0e19afdc : SUCCESS in 9m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/87ae8e2ccfb046439062a8d42fcb09dd : SUCCESS in 10m 22s