{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"(&ty::Infer(ty::TyVar(v)),"}]}
                            (&ty::Infer(ty::TyVar(v)), ty::Dynamic(..))
                        match (self_ty.kind(), unsize_ty.kind()) {
                                if self.type_var_is_sized(v) =>