mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-01 06:51:58 +00:00
30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
|
|
--> $DIR/specialization-wfcheck.rs:3:12
|
|
|
|
|
LL | #![feature(specialization)]
|
|
| ^^^^^^^^^^^^^^
|
|
|
|
|
= note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
|
|
= help: consider using `min_specialization` instead, which is more stable and complete
|
|
= note: `#[warn(incomplete_features)]` on by default
|
|
|
|
error[E0277]: the trait bound `U: Eq` is not satisfied
|
|
--> $DIR/specialization-wfcheck.rs:7:17
|
|
|
|
|
LL | default impl<U> Foo<'static, U> for () {}
|
|
| ^^^^^^^^^^^^^^^ the trait `Eq` is not implemented for `U`
|
|
|
|
|
note: required by a bound in `Foo`
|
|
--> $DIR/specialization-wfcheck.rs:5:18
|
|
|
|
|
LL | trait Foo<'a, T: Eq + 'a> { }
|
|
| ^^ required by this bound in `Foo`
|
|
help: consider restricting type parameter `U`
|
|
|
|
|
LL | default impl<U: std::cmp::Eq> Foo<'static, U> for () {}
|
|
| ++++++++++++++
|
|
|
|
error: aborting due to previous error; 1 warning emitted
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|