mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-31 14:31:55 +00:00
42 lines
1.4 KiB
Plaintext
42 lines
1.4 KiB
Plaintext
warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
|
|
--> $DIR/equality.rs:1:12
|
|
|
|
|
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[E0308]: mismatched types
|
|
--> $DIR/equality.rs:15:5
|
|
|
|
|
LL | fn two(x: bool) -> impl Foo {
|
|
| -------- expected `i32` because of return type
|
|
...
|
|
LL | 0_u32
|
|
| ^^^^^ expected `i32`, found `u32`
|
|
|
|
|
help: change the type of the numeric literal from `u32` to `i32`
|
|
|
|
|
LL | 0_i32
|
|
| ~~~
|
|
|
|
error[E0277]: cannot add `impl Foo` to `u32`
|
|
--> $DIR/equality.rs:24:11
|
|
|
|
|
LL | n + sum_to(n - 1)
|
|
| ^ no implementation for `u32 + impl Foo`
|
|
|
|
|
= help: the trait `Add<impl Foo>` is not implemented for `u32`
|
|
= help: the following other types implement trait `Add<Rhs>`:
|
|
<&'a u32 as Add<u32>>
|
|
<&u32 as Add<&u32>>
|
|
<u32 as Add<&u32>>
|
|
<u32 as Add>
|
|
|
|
error: aborting due to 2 previous errors; 1 warning emitted
|
|
|
|
Some errors have detailed explanations: E0277, E0308.
|
|
For more information about an error, try `rustc --explain E0277`.
|