{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"self.tcx.hir_name(*var_hir_id),"}]}
                                        self.tcx.hir_name(*var_hir_id),
                                    lint.span_label(*use_span, format!("in Rust 2018, this causes the closure to capture `{}`, but in Rust 2021, it has no effect",
                                    ));