mirror of https://github.com/rust-lang/rust
72 lines
2.9 KiB
Plaintext
72 lines
2.9 KiB
Plaintext
error[E0658]: `?Trait` is not permitted in supertraits
|
|
--> $DIR/feature-gate-more-maybe-bounds.rs:5:15
|
|
|
|
|
LL | trait Trait3: ?Trait1 {}
|
|
| ^^^^^^^
|
|
|
|
|
= note: traits are `?Trait1` by default
|
|
= help: add `#![feature(more_maybe_bounds)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
error[E0658]: `?Trait` is not permitted in trait object types
|
|
--> $DIR/feature-gate-more-maybe-bounds.rs:10:28
|
|
|
|
|
LL | fn foo(_: Box<dyn Trait1 + ?Trait2>) {}
|
|
| ^^^^^^^
|
|
|
|
|
= help: add `#![feature(more_maybe_bounds)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
error[E0658]: `?Trait` bounds are only permitted at the point where a type parameter is declared
|
|
--> $DIR/feature-gate-more-maybe-bounds.rs:7:26
|
|
|
|
|
LL | trait Trait4 where Self: ?Trait1 {}
|
|
| ^^^^^^^
|
|
|
|
|
= help: add `#![feature(more_maybe_bounds)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
error[E0203]: type parameter has more than one relaxed default bound, only one is supported
|
|
--> $DIR/feature-gate-more-maybe-bounds.rs:12:11
|
|
|
|
|
LL | fn bar<T: ?Trait1 + ?Trait2>(_: T) {}
|
|
| ^^^^^^^ ^^^^^^^
|
|
|
|
|
= help: add `#![feature(more_maybe_bounds)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default
|
|
--> $DIR/feature-gate-more-maybe-bounds.rs:12:11
|
|
|
|
|
LL | fn bar<T: ?Trait1 + ?Trait2>(_: T) {}
|
|
| ^^^^^^^
|
|
|
|
warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default
|
|
--> $DIR/feature-gate-more-maybe-bounds.rs:12:21
|
|
|
|
|
LL | fn bar<T: ?Trait1 + ?Trait2>(_: T) {}
|
|
| ^^^^^^^
|
|
|
|
error[E0203]: type parameter has more than one relaxed default bound, only one is supported
|
|
--> $DIR/feature-gate-more-maybe-bounds.rs:19:11
|
|
|
|
|
LL | fn baz<T: ?Trait + ?Trait>(_ : T) {}
|
|
| ^^^^^^ ^^^^^^
|
|
|
|
warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default
|
|
--> $DIR/feature-gate-more-maybe-bounds.rs:19:11
|
|
|
|
|
LL | fn baz<T: ?Trait + ?Trait>(_ : T) {}
|
|
| ^^^^^^
|
|
|
|
warning: relaxing a default bound only does something for `?Sized`; all other traits are not bound by default
|
|
--> $DIR/feature-gate-more-maybe-bounds.rs:19:20
|
|
|
|
|
LL | fn baz<T: ?Trait + ?Trait>(_ : T) {}
|
|
| ^^^^^^
|
|
|
|
error: aborting due to 5 previous errors; 4 warnings emitted
|
|
|
|
Some errors have detailed explanations: E0203, E0658.
|
|
For more information about an error, try `rustc --explain E0203`.
|