diff --git a/src/main.rs b/src/main.rs
index 78cd88a..4f6575d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -236,7 +236,7 @@ fn main() {
         }));
     }
     for child in children {
-        child.join();
+        let _ = child.join();
     }
 
     // compute file hash in parallel
@@ -249,8 +249,7 @@ fn main() {
     println!("Use {} chunk(s) of size {}", modulus, chunk_size);
     println!("Use {} chunk(s) of size {}", num_cpus - modulus, chunk_size - 1);
 
-    let mut guards = vec![];
-    let mut work = files_candidate.clone().lock().unwrap();
+    let mut work = files_candidate.lock().unwrap();
 
     // Example from :
     // https://stackoverflow.com/questions/33818141/how-do-i-pass-disjoint-slices-from-a-vector-to-different-threads
@@ -261,6 +260,7 @@ fn main() {
         let chunk_a = split_a.chunks_mut(chunk_size);
         let chunk_b = split_b.chunks_mut(chunk_size - 1);
 
+        let mut guards = vec![];
         for (i, slice) in chunk_a.chain(chunk_b).enumerate() {
             // Spawn a thread operating on that subslice.
             let guard = scope.spawn(move || {
@@ -276,16 +276,19 @@ fn main() {
             });
             guards.push(guard);
         }
+        for guard in guards {
+            let _ = guard.join();
+        }
     });
 
-    for guard in guards {
-        guard.join();
-    }
-
     for i in work.iter() {
         println!("{}", i);
     }
 
+    // TODO with work !
+    // check for each hash duplication
+    // if so --> log to file and remove from list (store to done vector)
+
     t.fg(term::color::CYAN).unwrap();
     let end = PreciseTime::now();
     println!("{} seconds.", start.to(end));