diff --git a/src/magick.rs b/src/magick.rs
index bb58315..3f32d76 100644
--- a/src/magick.rs
+++ b/src/magick.rs
@@ -136,7 +136,7 @@ where
     if input_format.coalesce() {
         args.push("-coalesce".as_ref());
     }
-    args.extend(process_args.iter().map(|s| AsRef::<OsStr>::as_ref(s)));
+    args.extend(process_args.iter().map(AsRef::<OsStr>::as_ref));
     if let Some(quality) = &quality {
         args.extend(["-quality".as_ref(), quality.as_ref()] as [&OsStr; 2]);
     }
diff --git a/src/process.rs b/src/process.rs
index 138a3a8..29bf910 100644
--- a/src/process.rs
+++ b/src/process.rs
@@ -128,9 +128,7 @@ impl Process {
         let res = tracing::trace_span!(parent: None, "Create command", %command).in_scope(|| {
             Self::spawn(
                 command,
-                Command::new(command)
-                    .args(args)
-                    .envs(envs.into_iter().copied()),
+                Command::new(command).args(args).envs(envs.iter().copied()),
                 timeout,
             )
         });
diff --git a/src/validate/ffmpeg.rs b/src/validate/ffmpeg.rs
index b093aa1..2034e8a 100644
--- a/src/validate/ffmpeg.rs
+++ b/src/validate/ffmpeg.rs
@@ -92,7 +92,7 @@ async fn transcode_files(
             "-c:v".as_ref(),
             output_format.ffmpeg_video_codec().as_ref(),
             "-crf".as_ref(),
-            &crf.as_ref(),
+            crf.as_ref(),
         ] as [&OsStr; 8]);
 
         if output_format.is_vp9() {