[Openstack-stable-maint] Stable check of openstack/ironic failed

Build failed. - periodic-ironic-docs-juno http://logs.openstack.org/periodic-stable/periodic-ironic-docs-juno/c7a3f00/ : SUCCESS in 8m 28s - periodic-ironic-python26-juno http://logs.openstack.org/periodic-stable/periodic-ironic-python26-juno/c44b... : UNSTABLE in 8m 00s - periodic-ironic-python27-juno http://logs.openstack.org/periodic-stable/periodic-ironic-python27-juno/a4b1... : SUCCESS in 6m 59s