mirror of https://github.com/rust-lang/rust
54 lines
2.1 KiB
Plaintext
54 lines
2.1 KiB
Plaintext
error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/wf-bounds.rs:12:22
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LL | fn nya() -> impl Wf<Vec<[u8]>>;
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| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `[u8]`
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note: required by an implicit `Sized` bound in `Vec`
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--> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/wf-bounds.rs:15:23
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LL | fn nya2() -> impl Wf<[u8]>;
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| ^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `[u8]`
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note: required by an implicit `Sized` bound in `Wf`
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--> $DIR/wf-bounds.rs:5:10
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LL | trait Wf<T> {
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| ^ required by the implicit `Sized` requirement on this type parameter in `Wf`
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help: consider relaxing the implicit `Sized` restriction
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LL | trait Wf<T: ?Sized> {
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| ++++++++
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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
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--> $DIR/wf-bounds.rs:18:44
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LL | fn nya3() -> impl Wf<(), Output = impl Wf<Vec<[u8]>>>;
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| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `[u8]`
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note: required by an implicit `Sized` bound in `Vec`
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--> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
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error[E0277]: `T` doesn't implement `std::fmt::Display`
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--> $DIR/wf-bounds.rs:21:26
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LL | fn nya4<T>() -> impl Wf<NeedsDisplay<T>>;
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| ^^^^^^^^^^^^^^^^^^^ `T` cannot be formatted with the default formatter
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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note: required by a bound in `NeedsDisplay`
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--> $DIR/wf-bounds.rs:9:24
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LL | struct NeedsDisplay<T: Display>(T);
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| ^^^^^^^ required by this bound in `NeedsDisplay`
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error: aborting due to 4 previous errors
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For more information about this error, try `rustc --explain E0277`.
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