39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
error[E0271]: type mismatch resolving `impl Trait + ?Sized <: dyn Send`
|
|
--> $DIR/unsized_coercion3.rs:13:17
|
|
|
|
|
LL | let x = hello();
|
|
| ^^^^^^^ types differ
|
|
|
|
error[E0308]: mismatched types
|
|
--> $DIR/unsized_coercion3.rs:18:14
|
|
|
|
|
LL | fn hello() -> Box<impl Trait + ?Sized> {
|
|
| ------------------- the expected opaque type
|
|
...
|
|
LL | Box::new(1u32)
|
|
| -------- ^^^^ types differ
|
|
| |
|
|
| arguments to this function are incorrect
|
|
|
|
|
= note: expected opaque type `impl Trait + ?Sized`
|
|
found type `u32`
|
|
note: associated function defined here
|
|
--> $SRC_DIR/alloc/src/boxed.rs:LL:COL
|
|
|
|
error[E0277]: the size for values of type `impl Trait + ?Sized` cannot be known at compilation time
|
|
--> $DIR/unsized_coercion3.rs:18:14
|
|
|
|
|
LL | Box::new(1u32)
|
|
| -------- ^^^^ doesn't have a size known at compile-time
|
|
| |
|
|
| required by a bound introduced by this call
|
|
|
|
|
= help: the trait `Sized` is not implemented for `impl Trait + ?Sized`
|
|
note: required by a bound in `Box::<T>::new`
|
|
--> $SRC_DIR/alloc/src/boxed.rs:LL:COL
|
|
|
|
error: aborting due to 3 previous errors
|
|
|
|
Some errors have detailed explanations: E0271, E0277, E0308.
|
|
For more information about an error, try `rustc --explain E0271`.
|