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39 lines
1.5 KiB
Plaintext
39 lines
1.5 KiB
Plaintext
warning: default bound relaxed for a type parameter, but this does nothing because the given bound is not a default; only `?Sized` is supported
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--> $DIR/issue-87199.rs:8:8
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LL | fn arg<T: ?Send>(_: T) {}
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| ^
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warning: default bound relaxed for a type parameter, but this does nothing because the given bound is not a default; only `?Sized` is supported
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--> $DIR/issue-87199.rs:10:12
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LL | fn ref_arg<T: ?Send>(_: &T) {}
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| ^
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warning: default bound relaxed for a type parameter, but this does nothing because the given bound is not a default; only `?Sized` is supported
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--> $DIR/issue-87199.rs:12:13
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LL | fn ret() -> impl Iterator<Item = ()> + ?Send { std::iter::empty() }
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error[E0277]: the size for values of type `[i32]` cannot be known at compilation time
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--> $DIR/issue-87199.rs:18:15
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LL | ref_arg::<[i32]>(&[5]);
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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 `[i32]`
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note: required by a bound in `ref_arg`
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--> $DIR/issue-87199.rs:10:12
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LL | fn ref_arg<T: ?Send>(_: &T) {}
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| ^ required by this bound in `ref_arg`
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help: consider relaxing the implicit `Sized` restriction
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LL | fn ref_arg<T: ?Send + ?Sized>(_: &T) {}
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| ++++++++
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error: aborting due to previous error; 3 warnings emitted
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For more information about this error, try `rustc --explain E0277`.
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