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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
--> $DIR/issue-67981.rs:4:24
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LL | let f: fn([u8]) = |_| {};
| ^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `[u8]`
help: function arguments must have a statically known size, borrowed types always have a known size
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LL | let f: fn([u8]) = |&_| {};
| +
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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