Format Rust code using rustfmt

src/colour.rs

@@ -9,9 +9,9 @@ impl From<String> for Colour {
     fn from(string: String) -> Colour {
         let values: Vec<&str> = string.split(',').collect();
 
-        let red:   u8 = values[0].parse().unwrap_or(0);
+        let red: u8 = values[0].parse().unwrap_or(0);
         let green: u8 = values[1].parse().unwrap_or(0);
-        let blue:  u8 = values[2].parse().unwrap_or(0);
+        let blue: u8 = values[2].parse().unwrap_or(0);
 
         Colour { red, green, blue }
     }
@@ -24,19 +24,27 @@ impl ToString for Colour {
     }
 }
 
-
 #[test]
 fn test_colour_from_string() {
     assert_eq!(
         Colour::from("0,255,0".to_string()),
-        Colour { red: 0, green: 255, blue: 0 }
+        Colour {
+            red: 0,
+            green: 255,
+            blue: 0
+        }
     );
 }
 
 #[test]
 fn test_colour_to_string() {
     assert_eq!(
-        Colour { red: 22, green: 33, blue: 44 }.to_string(),
+        Colour {
+            red: 22,
+            green: 33,
+            blue: 44
+        }
+        .to_string(),
         "22,33,44".to_string()
     );
 }