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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:9:6
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LL | ) -> Struct {
| ^^^^^^ doesn't have a size known at compile-time
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= help: within `Struct`, the trait `Sized` is not implemented for `(dyn A + 'static)`
note: required because it appears within the type `Struct`
--> $DIR/issue-5883.rs:3:8
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LL | struct Struct {
| ^^^^^^
= note: the return type of a function must have a statically known size
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 | r: dyn A + 'static
| ^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `(dyn A + 'static)`
= help: unsized fn params are gated as an unstable feature
help: you can use `impl Trait` as the argument type
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LL - r: dyn A + 'static
LL + r: impl A + 'static
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help: function arguments must have a statically known size, borrowed types always have a known size
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LL | r: &dyn A + 'static
| +
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.
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