mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-02 07:22:42 +00:00
15 lines
643 B
Plaintext
15 lines
643 B
Plaintext
|
error[E0658]: cannot cast `dyn A` to `dyn B`, trait upcasting coercion is experimental
|
||
|
|
--> $DIR/upcast-through-struct-tail.rs:10:5
|
||
|
|
|
|
||
|
|
LL | x
|
||
|
|
| ^
|
||
|
|
|
|
||
|
|
= note: see issue #65991 <https://github.com/rust-lang/rust/issues/65991> for more information
|
||
|
|
= help: add `#![feature(trait_upcasting)]` to the crate attributes to enable
|
||
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
||
|
|
= note: required when coercing `Box<Wrapper<(dyn A + 'a)>>` into `Box<Wrapper<(dyn B + 'a)>>`
|
||
|
|
|
||
|
|
error: aborting due to 1 previous error
|
||
|
|
|
||
|
|
For more information about this error, try `rustc --explain E0658`.
|