error[E0658]: `X..` patterns in slices are experimental
  --> $DIR/slice_pattern_syntax_problem1.rs:4:10
   |
LL |     let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs;
   |          ^^^^^^^
   |
   = note: see issue #67264 <https://github.com/rust-lang/rust/issues/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   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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/slice_pattern_syntax_problem1.rs:4:9
   |
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`.