{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"hir_ids_and_spans.iter().map(|(_,"}]}
                    hir_ids_and_spans.iter().map(|(_, pat_span, _)| *pat_span).collect::<Vec<_>>(),
                    first_hir_id,
                    errors::UnusedVarRemoveField {