| error[E0072]: recursive type `ListNode` has infinite size | |
| --> $DIR/E0072.rs:1:1 | |
| | | |
| LL | struct ListNode { | |
| | ^^^^^^^^^^^^^^^ recursive type has infinite size | |
| LL | head: u8, | |
| LL | tail: Option<ListNode>, | |
| | ---------------------- recursive without indirection | |
| | | |
| = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `ListNode` representable | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0072`. |