| error[E0658]: const generics are unstable |
| --> $DIR/feature-gate-const_generics.rs:1:14 |
| | |
| LL | fn foo<const X: ()>() {} |
| | ^ |
| | |
| = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information |
| = help: add `#![feature(const_generics)]` to the crate attributes to enable |
| |
| error[E0658]: const generics are unstable |
| --> $DIR/feature-gate-const_generics.rs:3:18 |
| | |
| LL | struct Foo<const X: usize>([(); X]); |
| | ^ |
| | |
| = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information |
| = help: add `#![feature(const_generics)]` to the crate attributes to enable |
| |
| error: aborting due to 2 previous errors |
| |
| For more information about this error, try `rustc --explain E0658`. |