diff --git a/2022/src/days/day7.rs b/2022/src/days/day7.rs
index fe76991..744b084 100644
--- a/2022/src/days/day7.rs
+++ b/2022/src/days/day7.rs
@@ -1,8 +1,8 @@
 use anyhow::{anyhow, Result};
-use std::fs;
 use std::collections::BTreeMap;
+use std::fs;
 
-#[derive(Debug,Default)]
+#[derive(Debug, Default)]
 struct Dir {
     name: String,
     files: Vec<File>,
@@ -68,7 +68,7 @@ fn part_two_sizes<'a>(dir: &'a Dir, needed: u32) -> Option<(u32, &'a str)> {
 
     for (key, val) in map.iter() {
         if *key >= needed {
-            return Some((*key, val))
+            return Some((*key, val));
         }
     }
 
@@ -76,7 +76,10 @@ fn part_two_sizes<'a>(dir: &'a Dir, needed: u32) -> Option<(u32, &'a str)> {
 }
 
 fn part_two_recurse<'a>(map: &mut BTreeMap<u32, &'a str>, dir: &'a Dir) {
-    map.insert((dir.total_size as u32).try_into().unwrap(), dir.name.as_str());
+    map.insert(
+        (dir.total_size as u32).try_into().unwrap(),
+        dir.name.as_str(),
+    );
     for subdir in dir.directories.iter() {
         part_two_recurse(map, subdir);
     }
@@ -165,10 +168,18 @@ pub fn run() -> Result<()> {
     let min_free_space = 30000000;
     let free_space = total_disk - root.total_size as u32;
     let needed_space = min_free_space - free_space;
-    println!("total size used {} free {} needed {}", root.total_size, free_space, needed_space);
+    println!(
+        "total size used {} free {} needed {}",
+        root.total_size, free_space, needed_space
+    );
 
     if let Some((rm_space, rm_name)) = part_two_sizes(&root, needed_space) {
-        println!("part two: should delete {} to reclaim {} total free space {}", rm_name, rm_space, free_space + rm_space);
+        println!(
+            "part two: should delete {} to reclaim {} total free space {}",
+            rm_name,
+            rm_space,
+            free_space + rm_space
+        );
     } else {
         println!("could not find part 2");
     }