1 error[E0277]: the trait bound `i32: std::slice::SliceIndex<[{integer}]>` is not satisfied
2 --> $DIR/index-help.rs:3:5
4 LL | x[0i32]; //~ ERROR E0277
5 | ^^^^^^^ slice indices are of type `usize` or ranges of `usize`
7 = help: the trait `std::slice::SliceIndex<[{integer}]>` is not implemented for `i32`
8 = note: required because of the requirements on the impl of `std::ops::Index<i32>` for `std::vec::Vec<{integer}>`
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0277`.