mirror of
https://github.com/rust-lang/rust.git
synced 2025-09-28 05:34:45 +00:00
18 lines
721 B
Plaintext
18 lines
721 B
Plaintext
error[E0277]: the size for values of type `dyn Foo` cannot be known at compilation time
|
|
--> $DIR/by-value-trait-dyn-compatibility-rpass.rs:14:9
|
|
|
|
|
LL | let x = *(Box::new(A) as Box<dyn Foo>);
|
|
| ^ doesn't have a size known at compile-time
|
|
|
|
|
= help: the trait `Sized` is not implemented for `dyn Foo`
|
|
= note: all local variables must have a statically known size
|
|
help: references are always `Sized`, even if they point to unsized data; consider not dereferencing the expression
|
|
|
|
|
LL - let x = *(Box::new(A) as Box<dyn Foo>);
|
|
LL + let x = (Box::new(A) as Box<dyn Foo>);
|
|
|
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|