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error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
--> $DIR/unsized-union-ice.rs:6:10
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LL | val: std::mem::ManuallyDrop<[u8]>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: within `ManuallyDrop<[u8]>`, the trait `Sized` is not implemented for `[u8]`
note: required because it appears within the type `ManuallyDrop<[u8]>`
--> $SRC_DIR/core/src/mem/manually_drop.rs:LL:COL
= note: no field of a union may have a dynamically sized type
= help: change the field's type to have a statically known size
help: borrowed types always have a statically known size
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LL | val: &std::mem::ManuallyDrop<[u8]>,
| +
help: the `Box` type always has a statically known size and allocates its contents in the heap
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LL | val: Box<std::mem::ManuallyDrop<[u8]>>,
| ++++ +
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.
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