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warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/specialization-polarity.rs:5:12
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LL | #![feature(specialization)]
| ^^^^^^^^^^^^^^
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= 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[E0751]: found both positive and negative implementation of trait `Foo` for type `u8`:
--> $DIR/specialization-polarity.rs:10:1
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LL | impl<T> Foo for T {}
| ----------------- positive implementation here
LL | impl !Foo for u8 {}
| ^^^^^^^^^^^^^^^^ negative implementation here
error[E0751]: found both positive and negative implementation of trait `Bar` for type `u8`:
--> $DIR/specialization-polarity.rs:15:1
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LL | impl<T> !Bar for T {}
| ------------------ negative implementation here
LL | impl Bar for u8 {}
| ^^^^^^^^^^^^^^^ positive implementation here
error: aborting due to 2 previous errors; 1 warning emitted
For more information about this error, try `rustc --explain E0751`.
|
