src/test/ui/index-help.stderr

   1 error[E0277]: the trait bound `i32: std::slice::SliceIndex<[{integer}]>` is not satisfied
   2   --> $DIR/index-help.rs:13:5
   3    |
   4 LL |     x[0i32]; //~ ERROR E0277
   5    |     ^^^^^^^ slice indices are of type `usize` or ranges of `usize`
   6    |
   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}>`
   9
  10 error: aborting due to previous error
  11
  12 For more information about this error, try `rustc --explain E0277`.