{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"self.delegate.leak_check(self.max_input_universe).map_err(|NoSolution|"}]}
        self.delegate.leak_check(self.max_input_universe).map_err(|NoSolution| {
        // of the query.
            trace!("failed the leak check");