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   1 │ /// A rectangle. First line is changed to prevent a regression of #1869
   2 │ struct Rectangle {
   3 │     width: u32,
   4 │     height: u32,
   5 │ }
   6 │ 
   7 │ fn main() {
   8 │     let rect1 = Rectangle { width: 30, height: 50 };
   9 │ 
  10 │     println!(
  11 │         "The perimeter of the rectangle is {} pixels.",
  12 │         perimeter(&rect1)
  13 │     );
  14 │     println!(r#"This line contains invalid utf8:  "�����"#;
  15 │ }
  16 │ 
  17 │ fn area(rectangle: &Rectangle) -> u32 {
  18 │     rectangle.width * rectangle.height
  19 │ }
  20 │ 
  21 │ fn perimeter(rectangle: &Rectangle) -> u32 {
  22 │     (rectangle.width + rectangle.height) * 2
  23 │ }
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