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

Build failed. - periodic-ironic-docs-liberty http://logs.openstack.org/periodic-stable/periodic-ironic-docs-liberty/81a75... : SUCCESS in 3m 46s - periodic-ironic-python27-db-liberty http://logs.openstack.org/periodic-stable/periodic-ironic-python27-db-libert... : FAILURE in 3m 09s - periodic-ironic-docs-mitaka http://logs.openstack.org/periodic-stable/periodic-ironic-docs-mitaka/44b11f... : SUCCESS in 4m 16s - periodic-ironic-python27-db-mitaka http://logs.openstack.org/periodic-stable/periodic-ironic-python27-db-mitaka... : SUCCESS in 3m 16s