Cargo fmt the rustlings application code

Signed-off-by: Eddy Petrisor <eddy.petrisor@gmail.com>

Author: eddyp

src/exercise.rs

@@ -1,7 +1,7 @@
 use serde::Deserialize;
 use std::fmt::{self, Display, Formatter};
-use std::fs::{remove_file};
-use std::path::{PathBuf};
+use std::fs::remove_file;
+use std::path::PathBuf;
 use std::process::{self, Command, Output};
 
 const RUSTC_COLOR_ARGS: &[&str] = &["--color", "always"];
@@ -63,8 +63,8 @@ impl Display for Exercise {
 #[cfg(test)]
 mod test {
     use super::*;
-    use std::path::Path;
     use std::fs::File;
+    use std::path::Path;
 
     #[test]
     fn test_clean() {

src/run.rs

@@ -1,4 +1,4 @@
-use crate::exercise::{Mode, Exercise};
+use crate::exercise::{Exercise, Mode};
 use crate::verify::test;
 use console::{style, Emoji};
 use indicatif::ProgressBar;

src/verify.rs

@@ -2,7 +2,7 @@ use crate::exercise::{Exercise, Mode};
 use console::{style, Emoji};
 use indicatif::ProgressBar;
 
-pub fn verify<'a>(start_at: impl IntoIterator<Item=&'a Exercise>) -> Result<(), ()> {
+pub fn verify<'a>(start_at: impl IntoIterator<Item = &'a Exercise>) -> Result<(), ()> {
     for exercise in start_at {
         match exercise.mode {
             Mode::Test => test(&exercise)?,