--> $DIR/unsized-trait-impl-trait-arg.rs:8:17
|
LL | impl<X: ?Sized> T2<X> for S4<X> {
- | -- ^^^^^ doesn't have a size known at compile-time
+ | - ^^^^^ doesn't have a size known at compile-time
| |
- | help: consider further restricting this bound: `X: std::marker::Sized +`
+ | this type parameter needs to be `std::marker::Sized`
|
= help: the trait `std::marker::Sized` is not implemented for `X`
= note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>