diff --git a/src/bencode/mod.rs b/src/bencode/mod.rs
index db95fd7..939a863 100644
--- a/src/bencode/mod.rs
+++ b/src/bencode/mod.rs
@@ -24,7 +24,7 @@ impl fmt::Debug for BencodeValue {
 }
 
 pub fn parse_bencoded(bencoded: Vec<u8>) -> (Option<BencodeValue>, Vec<u8>) {
-    let next = bencoded.iter().next().unwrap();
+    let next = bencoded.first().unwrap();
     match *next as char {
         c if c.is_ascii_digit() => parse_string(bencoded),
         c if c == 'i' => parse_int(bencoded),
@@ -32,7 +32,7 @@ pub fn parse_bencoded(bencoded: Vec<u8>) -> (Option<BencodeValue>, Vec<u8>) {
         c if c == 'd' => parse_dict(bencoded),
         _ => {
             eprintln!("unexpected character `{}`", *next as char);
-            return (None, bencoded);
+            (None, bencoded)
         }
     }
 }
@@ -180,6 +180,7 @@ pub fn parse_dict(bencoded: Vec<u8>) -> (Option<BencodeValue>, Vec<u8>) {
     )
 }
 
+#[cfg(test)]
 mod test {
     use super::*;
 
diff --git a/src/main.rs b/src/main.rs
index 3440859..46f3279 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,6 +11,6 @@ fn main() {
         if !left.is_empty() {
             panic!("trailing bencoded data: {}", String::from_utf8(left).unwrap());
         }
-        println!("{:#?}", metadata);
+        println!("{metadata:#?}");
     }
 }