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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
--> $DIR/wf-array-elem-sized.rs:17:5
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LL | foo: [[u8]], //~ ERROR E0277
| ^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `std::marker::Sized` is not implemented for `[u8]`
= note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
= note: slice and array elements must have `Sized` type
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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