{"ast_node_type":"variable","tokens":[{"end":96,"kind":"keyword","start":0,"text":"let"}]}
            let unwrap_ty = adt_def.non_enum_variant().fields[FieldIdx::ZERO].ty(tcx, adt_args);
            let obj_ptr_ty = Ty::new_mut_ptr(tcx, drop_ty);
            let obj_ref_place = Place::from(self.new_temp(unwrap_ty));