#![allow(incomplete_features)]
#![feature(inline_const)]
fn main() {
    const N: u32 = 10;
    let x: u32 = 3;

    match x {
        1 .. const { N - 1 } => {},
        _ => {},
    }
}

error: expected one of `=>`, `if`, or `|`, found keyword `const`
 --> ...\temp.rs:9:14
  |
9 |         1 .. const { N - 1 } => {},
  |              ^^^^^ expected one of `=>`, `if`, or `|`

error[E0658]: half-open range patterns are unstable
 --> ...\temp.rs:9:9
  |
9 |         1 .. const { N - 1 } => {},
  |         ^^^^
  |
  = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
  = help: add `#![feature(half_open_range_patterns)]` to the crate attributes to enable