rust/tests/ui/consts/issue-68542-closure-in-array-len.stderr
Esteban Küber 6c31f6ce12 Provide structured suggestion for #![feature(foo)]
```
error: `S2<'_>` is forbidden as the type of a const generic parameter
  --> $DIR/lifetime-in-const-param.rs:5:23
   |
LL | struct S<'a, const N: S2>(&'a ());
   |                       ^^
   |
   = note: the only supported types are integers, `bool` and `char`
help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types
   |
LL + #![feature(adt_const_params)]
   |
```

Fix #55941.
2024-03-18 16:08:58 +00:00

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error[E0015]: cannot call non-const closure in constants
--> $DIR/issue-68542-closure-in-array-len.rs:6:13
|
LL | a: [(); (|| { 0 })()]
| ^^^^^^^^^^^^
|
= note: closures need an RFC before allowed to be called in constants
= note: calls in constants are limited to constant functions, tuple structs and tuple variants
help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
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LL + #![feature(const_trait_impl)]
|
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0015`.