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error[E0277]: the size for values of type `[Box<E>]` cannot be known at compilation time
--> $DIR/issue-35988.rs:2:7
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LL | V([Box<E>]),
| ^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `[Box<E>]`
= note: no field of an enum variant 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 | V(&[Box<E>]),
| +
help: the `Box` type always has a statically known size and allocates its contents in the heap
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LL | V(Box<[Box<E>]>),
| ++++ +
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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