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warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/specialization-unconstrained.rs:3:12
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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[E0271]: type mismatch resolving `<u32 as Default>::Id == ()`
--> $DIR/specialization-unconstrained.rs:20:12
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LL | test::<u32, ()>();
| ^^^ types differ
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note: required by a bound in `test`
--> $DIR/specialization-unconstrained.rs:17:20
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LL | fn test<T: Default<Id = U>, U>() {}
| ^^^^^^ required by this bound in `test`
error: aborting due to 1 previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0271`.
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