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error[E0746]: return type cannot have an unboxed trait object
--> $DIR/E0746.rs:8:13
|
LL | fn foo() -> dyn Trait { Struct }
| ^^^^^^^^^ doesn't have a size known at compile-time
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= note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits>
help: use `impl Trait` as the return type, as all return paths are of type `Struct`, which implements `Trait`
|
LL | fn foo() -> impl Trait { Struct }
| ~~~~~~~~~~
error[E0746]: return type cannot have an unboxed trait object
--> $DIR/E0746.rs:11:13
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LL | fn bar() -> dyn Trait {
| ^^^^^^^^^ doesn't have a size known at compile-time
|
= note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits>
help: use `impl Trait` as the return type, as all return paths are of type `{integer}`, which implements `Trait`
|
LL | fn bar() -> impl Trait {
| ~~~~~~~~~~
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0746`.
|
