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error[E0225]: only auto traits can be used as additional traits in a trait object
--> $DIR/bad-sized.rs:4:28
|
LL | let x: Vec<dyn Trait + Sized> = Vec::new();
| ----- ^^^^^
| | |
| | additional non-auto trait
| | trait alias used in trait object type (additional use)
| first non-auto trait
| trait alias used in trait object type (first use)
error[E0277]: the size for values of type `dyn Trait` cannot be known at compilation time
--> $DIR/bad-sized.rs:4:12
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LL | let x: Vec<dyn Trait + Sized> = Vec::new();
| ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
::: $SRC_DIR/liballoc/vec.rs:LL:COL
|
LL | pub struct Vec<T> {
| - required by this bound in `std::vec::Vec`
|
= help: the trait `std::marker::Sized` is not implemented for `dyn Trait`
= note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
error[E0277]: the size for values of type `dyn Trait` cannot be known at compilation time
--> $DIR/bad-sized.rs:4:37
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LL | let x: Vec<dyn Trait + Sized> = Vec::new();
| ^^^^^^^^ doesn't have a size known at compile-time
|
= help: the trait `std::marker::Sized` is not implemented for `dyn Trait`
= 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 by `std::vec::Vec::<T>::new`
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0225, E0277.
For more information about an error, try `rustc --explain E0225`.
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