{"ast_node_type":"variable","tokens":[{"end":70,"kind":"keyword","start":0,"text":"let"}]}
                let fail_out_of_bounds = |this: &mut Self, location| {
                let parent_ty = place_ref.ty(&self.body.local_decls, self.tcx);
                    this.fail(location, format!("Out of bounds field {f:?} for {parent_ty:?}"));