error[E0277]: the type `[isize]` cannot be indexed by `u8` --> $DIR/indexing-integral-types.rs:10:7 | LL | v[3u8]; | ^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[isize]>` is not implemented for `u8` = help: the following other types implement trait `SliceIndex`: `usize` implements `SliceIndex` `usize` implements `SliceIndex<[T]>` = note: required for `Vec` to implement `Index` error[E0277]: the type `[isize]` cannot be indexed by `i8` --> $DIR/indexing-integral-types.rs:11:7 | LL | v[3i8]; | ^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[isize]>` is not implemented for `i8` = help: the following other types implement trait `SliceIndex`: `usize` implements `SliceIndex` `usize` implements `SliceIndex<[T]>` = note: required for `Vec` to implement `Index` error[E0277]: the type `[isize]` cannot be indexed by `u32` --> $DIR/indexing-integral-types.rs:12:7 | LL | v[3u32]; | ^^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[isize]>` is not implemented for `u32` = help: the following other types implement trait `SliceIndex`: `usize` implements `SliceIndex` `usize` implements `SliceIndex<[T]>` = note: required for `Vec` to implement `Index` error[E0277]: the type `[isize]` cannot be indexed by `i32` --> $DIR/indexing-integral-types.rs:13:7 | LL | v[3i32]; | ^^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[isize]>` is not implemented for `i32` = help: the following other types implement trait `SliceIndex`: `usize` implements `SliceIndex` `usize` implements `SliceIndex<[T]>` = note: required for `Vec` to implement `Index` error[E0277]: the type `[u8]` cannot be indexed by `u8` --> $DIR/indexing-integral-types.rs:16:18 | LL | s.as_bytes()[3u8]; | ^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[u8]>` is not implemented for `u8` = help: the following other types implement trait `SliceIndex`: `usize` implements `SliceIndex` `usize` implements `SliceIndex<[T]>` = note: required for `[u8]` to implement `Index` error[E0277]: the type `[u8]` cannot be indexed by `i8` --> $DIR/indexing-integral-types.rs:17:18 | LL | s.as_bytes()[3i8]; | ^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[u8]>` is not implemented for `i8` = help: the following other types implement trait `SliceIndex`: `usize` implements `SliceIndex` `usize` implements `SliceIndex<[T]>` = note: required for `[u8]` to implement `Index` error[E0277]: the type `[u8]` cannot be indexed by `u32` --> $DIR/indexing-integral-types.rs:18:18 | LL | s.as_bytes()[3u32]; | ^^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[u8]>` is not implemented for `u32` = help: the following other types implement trait `SliceIndex`: `usize` implements `SliceIndex` `usize` implements `SliceIndex<[T]>` = note: required for `[u8]` to implement `Index` error[E0277]: the type `[u8]` cannot be indexed by `i32` --> $DIR/indexing-integral-types.rs:19:18 | LL | s.as_bytes()[3i32]; | ^^^^ slice indices are of type `usize` or ranges of `usize` | = help: the trait `SliceIndex<[u8]>` is not implemented for `i32` = help: the following other types implement trait `SliceIndex`: `usize` implements `SliceIndex` `usize` implements `SliceIndex<[T]>` = note: required for `[u8]` to implement `Index` error: aborting due to 8 previous errors For more information about this error, try `rustc --explain E0277`.