1 error[E0277]: the trait bound `std::vec::Vec<{integer}>: std::ops::Index<i32>` is not satisfied
2 --> $DIR/index-help.rs:13:5
4 LL | x[0i32]; //~ ERROR E0277
5 | ^^^^^^^ vector indices are of type `usize` or ranges of `usize`
7 = help: the trait `std::ops::Index<i32>` is not implemented for `std::vec::Vec<{integer}>`
9 error: aborting due to previous error
11 If you want more information on this error, try using "rustc --explain E0277"