| warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes |
| --> $DIR/negative-specializes-positive-item.rs:1:12 |
| | |
| LL | #![feature(specialization)] |
| | ^^^^^^^^^^^^^^ |
| | |
| = note: `#[warn(incomplete_features)]` on by default |
| = 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 |
| |
| error[E0751]: found both positive and negative implementation of trait `MyTrait` for type `u32`: |
| --> $DIR/negative-specializes-positive-item.rs:11:1 |
| | |
| LL | impl<T> MyTrait for T { |
| | --------------------- positive implementation here |
| ... |
| LL | impl !MyTrait for u32 {} |
| | ^^^^^^^^^^^^^^^^^^^^^ negative implementation here |
| |
| error: aborting due to previous error; 1 warning emitted |
| |
| For more information about this error, try `rustc --explain E0751`. |
