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