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warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/equality.rs:1:12
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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[E0308]: mismatched types
--> $DIR/equality.rs:15:5
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LL | fn two(x: bool) -> impl Foo {
| -------- expected `i32` because of return type
...
LL | 0_u32
| ^^^^^ expected `i32`, found `u32`
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help: change the type of the numeric literal from `u32` to `i32`
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LL | 0_i32
| ~~~
error[E0284]: type annotations needed: cannot satisfy `<u32 as Add<impl Foo>>::Output == i32`
--> $DIR/equality.rs:24:11
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LL | n + sum_to(n - 1)
| ^ cannot satisfy `<u32 as Add<impl Foo>>::Output == i32`
error: aborting due to 2 previous errors; 1 warning emitted
Some errors have detailed explanations: E0284, E0308.
For more information about an error, try `rustc --explain E0284`.
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