1 error[E0072]: recursive type `ListNode` has infinite size
2 --> $DIR/multiline-span-E0072.rs:12:1
9 16 | | tail: Option<ListNode>,
11 | |_^ ...ending here: recursive type has infinite size
13 = help: insert indirection (e.g., a `Box`, `Rc`, or `&`) at some point to make `ListNode` representable
15 error: aborting due to previous error