error[E0277]: the trait bound `i32: std::slice::SliceIndex<[i32]>` is not satisfied --> $DIR/slice-index.rs:21:5 | 21 | x[1i32]; //~ ERROR E0277 | ^^^^^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `std::slice::SliceIndex<[i32]>` is not implemented for `i32` = note: required because of the requirements on the impl of `std::ops::Index` for `[i32]` error[E0277]: the trait bound `std::ops::RangeTo: std::slice::SliceIndex<[i32]>` is not satisfied --> $DIR/slice-index.rs:22:5 | 22 | x[..1i32]; //~ ERROR E0277 | ^^^^^^^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `std::slice::SliceIndex<[i32]>` is not implemented for `std::ops::RangeTo` = note: required because of the requirements on the impl of `std::ops::Index>` for `[i32]` error: aborting due to 2 previous errors