rust/tests/ui/consts/const-for-feature-gate.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

51 lines
1.9 KiB
Plaintext

error[E0658]: `for` is not allowed in a `const`
--> $DIR/const-for-feature-gate.rs:4:5
|
LL | for _ in 0..5 {}
| ^^^^^^^^^^^^^^^^
|
= note: see issue #87575 <https://github.com/rust-lang/rust/issues/87575> for more information
= help: add `#![feature(const_for)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error[E0015]: cannot convert `std::ops::Range<i32>` into an iterator in constants
--> $DIR/const-for-feature-gate.rs:4:14
|
LL | for _ in 0..5 {}
| ^^^^
|
note: impl defined here, but it is not `const`
--> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL
= 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
|
LL + #![feature(const_trait_impl)]
|
error[E0658]: mutable references are not allowed in constants
--> $DIR/const-for-feature-gate.rs:4:14
|
LL | for _ in 0..5 {}
| ^^^^
|
= note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
= help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error[E0015]: cannot call non-const fn `<std::ops::Range<i32> as Iterator>::next` in constants
--> $DIR/const-for-feature-gate.rs:4:14
|
LL | for _ in 0..5 {}
| ^^^^
|
= 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
|
LL + #![feature(const_trait_impl)]
|
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0015, E0658.
For more information about an error, try `rustc --explain E0015`.