Trait fun

structs/src/main.rs

@@ -1,3 +1,4 @@
+#[derive(Debug)]
 struct Rectangle {
     width: u32,
     height: u32,
@@ -9,6 +10,8 @@ fn main() {
         height: 50,
     };
 
+    println!("rect1 is {:#?}", rect1);
+
     println!(
         "The area of the rectangle is {} square pixels.",
         area(&rect1)