1 error[E0072]: recursive type `List` has infinite size
2 --> $DIR/recursive-enum.rs:1:1
4 LL | enum List<T> { Cons(T, List<T>), Nil }
5 | ^^^^^^^^^^^^ ------- recursive without indirection
7 help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
9 LL | enum List<T> { Cons(T, Box<List<T>>), Nil }
12 error: aborting due to previous error
14 For more information about this error, try `rustc --explain E0072`.