| error[E0277]: `{integer}` is not an iterator | 
 |   --> $DIR/integral.rs:2:14 | 
 |    | | 
 | LL |     for _ in 42 {} | 
 |    |              ^^ `{integer}` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `{integer}` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `{integer}` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `u8` is not an iterator | 
 |   --> $DIR/integral.rs:4:14 | 
 |    | | 
 | LL |     for _ in 42 as u8 {} | 
 |    |              ^^^^^^^^ `u8` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `u8` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `u8` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `i8` is not an iterator | 
 |   --> $DIR/integral.rs:6:14 | 
 |    | | 
 | LL |     for _ in 42 as i8 {} | 
 |    |              ^^^^^^^^ `i8` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `i8` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `i8` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `u16` is not an iterator | 
 |   --> $DIR/integral.rs:8:14 | 
 |    | | 
 | LL |     for _ in 42 as u16 {} | 
 |    |              ^^^^^^^^^ `u16` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `u16` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `u16` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `i16` is not an iterator | 
 |   --> $DIR/integral.rs:10:14 | 
 |    | | 
 | LL |     for _ in 42 as i16 {} | 
 |    |              ^^^^^^^^^ `i16` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `i16` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `i16` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `u32` is not an iterator | 
 |   --> $DIR/integral.rs:12:14 | 
 |    | | 
 | LL |     for _ in 42 as u32 {} | 
 |    |              ^^^^^^^^^ `u32` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `u32` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `u32` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `i32` is not an iterator | 
 |   --> $DIR/integral.rs:14:14 | 
 |    | | 
 | LL |     for _ in 42 as i32 {} | 
 |    |              ^^^^^^^^^ `i32` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `i32` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `i32` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `u64` is not an iterator | 
 |   --> $DIR/integral.rs:16:14 | 
 |    | | 
 | LL |     for _ in 42 as u64 {} | 
 |    |              ^^^^^^^^^ `u64` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `u64` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `u64` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `i64` is not an iterator | 
 |   --> $DIR/integral.rs:18:14 | 
 |    | | 
 | LL |     for _ in 42 as i64 {} | 
 |    |              ^^^^^^^^^ `i64` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `i64` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `i64` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `usize` is not an iterator | 
 |   --> $DIR/integral.rs:20:14 | 
 |    | | 
 | LL |     for _ in 42 as usize {} | 
 |    |              ^^^^^^^^^^^ `usize` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `usize` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `usize` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `isize` is not an iterator | 
 |   --> $DIR/integral.rs:22:14 | 
 |    | | 
 | LL |     for _ in 42 as isize {} | 
 |    |              ^^^^^^^^^^^ `isize` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `isize` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `isize` to implement `IntoIterator` | 
 |  | 
 | error[E0277]: `{float}` is not an iterator | 
 |   --> $DIR/integral.rs:24:14 | 
 |    | | 
 | LL |     for _ in 42.0 {} | 
 |    |              ^^^^ `{float}` is not an iterator | 
 |    | | 
 |    = help: the trait `Iterator` is not implemented for `{float}` | 
 |    = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` | 
 |    = note: required for `{float}` to implement `IntoIterator` | 
 |  | 
 | error: aborting due to 12 previous errors | 
 |  | 
 | For more information about this error, try `rustc --explain E0277`. |