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rust/compiler/rustc_middle
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Esteban Küber 68253e14ee Don't suggest restricting bound with unstable traits on stable 
On nightly, we mention the trait is unstable

```
error[E0277]: the trait bound `T: Unstable` is not satisfied
  --> $DIR/unstable-trait-suggestion.rs:13:9
   |
LL |     foo(t)
   |     --- ^ the trait `Unstable` is not implemented for `T`
   |     |
   |     required by a bound introduced by this call
   |
note: required by a bound in `foo`
  --> $DIR/unstable-trait-suggestion.rs:9:11
   |
LL | fn foo<T: Unstable>(_: T) {}
   |           ^^^^^^^^ required by this bound in `foo`
help: consider restricting type parameter `T` but it is an `unstable` trait
   |
LL | pub fn demo<T: Unstable>(t: T) {
   |              ++++++++++
```

On stable, we don't suggest the trait at all

```
error[E0277]: the trait bound `T: Unstable` is not satisfied
  --> $DIR/unstable-trait-suggestion.rs:13:9
   |
LL |     foo(t)
   |     --- ^ the trait `Unstable` is not implemented for `T`
   |     |
   |     required by a bound introduced by this call
   |
note: required by a bound in `foo`
  --> $DIR/unstable-trait-suggestion.rs:9:11
   |
LL | fn foo<T: Unstable>(_: T) {}
   |           ^^^^^^^^ required by this bound in `foo`
```
2024-12-07 21:10:44 +00:00
..
src Don't suggest restricting bound with unstable traits on stable 2024-12-07 21:10:44 +00:00
Cargo.toml Delete the cfg(not(parallel)) serial compiler 2024-11-12 13:38:58 +00:00
messages.ftl Move some code from Compiler::enter to GlobalCtxt::finish 2024-11-09 17:55:39 +00:00
README.md

README.md

For more information about how rustc works, see the rustc dev guide.