{"ast_node_type":"variable","tokens":[{"end":91,"kind":"keyword","start":0,"text":"let"}]}
        let mut visitor = MentionedItemsVisitor { tcx, body, mentioned_items: Vec::new() };
    fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut mir::Body<'tcx>) {
        visitor.visit_body(body);