{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":".iter_instantiated_copied(tcx,"}]}
            .iter_instantiated_copied(tcx, future_ty.args)
            .explicit_item_bounds(future_ty.def_id)
            .find_map(|(clause, _)| match clause.kind().no_bound_vars()? {