diff --git a/crunchy-cli-core/src/cli/download.rs b/crunchy-cli-core/src/cli/download.rs
index b0d0ffa..df48d54 100644
--- a/crunchy-cli-core/src/cli/download.rs
+++ b/crunchy-cli-core/src/cli/download.rs
@@ -68,7 +68,12 @@ impl Execute for Download {
     fn pre_check(&self) -> Result<()> {
         if has_ffmpeg() {
             debug!("FFmpeg detected")
-        } else if PathBuf::from(&self.output).extension().unwrap_or_default().to_string_lossy() != "ts" {
+        } else if PathBuf::from(&self.output)
+            .extension()
+            .unwrap_or_default()
+            .to_string_lossy()
+            != "ts"
+        {
             bail!("File extension is not '.ts'. If you want to use a custom file format, please install ffmpeg")
         }
 
diff --git a/crunchy-cli-core/src/lib.rs b/crunchy-cli-core/src/lib.rs
index c895d51..e8cd52a 100644
--- a/crunchy-cli-core/src/lib.rs
+++ b/crunchy-cli-core/src/lib.rs
@@ -16,7 +16,9 @@ pub use cli::{archive::Archive, download::Download, login::Login};
 
 #[async_trait::async_trait(?Send)]
 trait Execute {
-    fn pre_check(&self) -> Result<()> { Ok(()) }
+    fn pre_check(&self) -> Result<()> {
+        Ok(())
+    }
     async fn execute(self, ctx: Context) -> Result<()>;
 }
 
diff --git a/crunchy-cli-core/src/utils/os.rs b/crunchy-cli-core/src/utils/os.rs
index 92e4e9f..e5c00ac 100644
--- a/crunchy-cli-core/src/utils/os.rs
+++ b/crunchy-cli-core/src/utils/os.rs
@@ -51,5 +51,7 @@ pub fn free_file(mut path: PathBuf) -> PathBuf {
 
 /// Sanitizes the given path to not contain any invalid file character.
 pub fn sanitize_file(path: PathBuf) -> PathBuf {
-    path.with_file_name(sanitize_filename::sanitize(path.file_name().unwrap().to_string_lossy()))
+    path.with_file_name(sanitize_filename::sanitize(
+        path.file_name().unwrap().to_string_lossy(),
+    ))
 }