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error[E0277]: the size for values of type `(dyn A + 'static)` cannot be known at compilation time
--> $DIR/issue-5883.rs:7:15
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LL | fn new_struct(r: A+'static)
| ^ doesn't have a size known at compile-time
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= help: the trait `std::marker::Sized` is not implemented for `(dyn A + 'static)`
= note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
error[E0277]: the size for values of type `(dyn A + 'static)` cannot be known at compilation time
--> $DIR/issue-5883.rs:8:8
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LL | -> Struct {
| ^^^^^^ doesn't have a size known at compile-time
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= help: within `Struct`, the trait `std::marker::Sized` is not implemented for `(dyn A + 'static)`
= note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
= note: required because it appears within the type `Struct`
= note: the return type of a function must have a statically known size
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.
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