1 error[E0072]: recursive type `Pong` has infinite size
2 --> $DIR/issue-2718-a.rs:8:5
4 LL | pub struct Pong(SendPacket<Ping>);
5 | ^^^^^^^^^^^^^^^ ---------------- recursive without indirection
7 | recursive type has infinite size
9 help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Pong` representable
11 LL | pub struct Pong(Box<SendPacket<Ping>>);
14 error: aborting due to previous error
16 For more information about this error, try `rustc --explain E0072`.