{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"(<[_]>::into_vec(#[rustc_box]"}]}
    (<[_]>::into_vec(#[rustc_box] crate ::boxed::Box::new([1u32, 2])));
    (crate ::vec::Vec::new());
    /* error: expected Expr *//* parse error: expected field name or number */