error[E0658]: inline-const in pattern position is experimental --> $DIR/range_pat_interactions3.rs:12:20 | LL | y @ 0..const { 5 + 1 } => assert_eq!(y, 5), | ^^^^^ | = note: see issue #76001 for more information = help: add `#![feature(inline_const_pat)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0658`.