14 lines
633 B
Text
14 lines
633 B
Text
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error[E0277]: the size for values of type `X` cannot be known at compilation time
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--> $DIR/unsized-trait-impl-trait-arg.rs:18:17
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LL | impl<X: ?Sized> T2<X> for S4<X> {
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| ^^^^^ doesn't have a size known at compile-time
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= help: the trait `std::marker::Sized` is not implemented for `X`
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= note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-sized>
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= help: consider adding a `where X: std::marker::Sized` bound
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0277`.
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