error[E0658]: `X..` patterns in slices are experimental --> $DIR/feature-gate-half-open-range-patterns-in-slices.rs:5:10 | LL | let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs; | ^^^^^^^ | = note: see issue #67264 for more information = help: add `#![feature(half_open_range_patterns_in_slices)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0005]: refutable pattern in local binding --> $DIR/feature-gate-half-open-range-patterns-in-slices.rs:5:9 | LL | let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ pattern `[i32::MIN..=2_i32, ..]` not covered | = note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html = note: the matched value is of type `[i32; 8]` help: you might want to use `let else` to handle the variant that isn't matched | LL | let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs else { todo!() }; | ++++++++++++++++ error: aborting due to 2 previous errors Some errors have detailed explanations: E0005, E0658. For more information about an error, try `rustc --explain E0005`.