remove warnings

1 files changed, 6 insertions, 6 deletions

diff --git a/2015/rs/code/four/src/main.rs b/2015/rs/code/four/src/main.rs
index 177ddc5..0888816 100644
--- a/2015/rs/code/four/src/main.rs
+++ b/2015/rs/code/four/src/main.rs
@@ -9,16 +9,16 @@ fn main() {
   buf.extend_from_slice(INPUT);
 
   for i in 0.. {
-    if i % 1000 == 0 { print!("{i}\r"); std::io::stdout().flush(); }
+    if i % 1000 == 0 { print!("{i}\r"); let _ = std::io::stdout().flush(); }
 
     let mut hasher = Md5::new();
-    write!(&mut buf, "{i}");
+    let _ = write!(&mut buf, "{i}");
     hasher.update(buf.as_slice());
     let hash = hasher.finalize();
     if hash.starts_with(&[0, 0]) && hash[2] < 16 {
       let mut hexhash = String::with_capacity(32);
       for digit in hash {
-        write!(&mut hexhash, "{digit:02x}");
+        let _ = write!(&mut hexhash, "{digit:02x}");
       }
       println!("Got 5 digit hash: {hexhash}, at {i}");
       break;
@@ -27,16 +27,16 @@ fn main() {
   }
 
   for i in 0.. {
-    if i % 1000 == 0 { print!("{i}\r"); std::io::stdout().flush(); }
+    if i % 1000 == 0 { print!("{i}\r"); let _ = std::io::stdout().flush(); }
 
     let mut hasher = Md5::new();
-    write!(&mut buf, "{i}");
+    let _ = write!(&mut buf, "{i}");
     hasher.update(buf.as_slice());
     let hash = hasher.finalize();
     if hash.starts_with(&[0, 0, 0]) {
       let mut hexhash = String::with_capacity(32);
       for digit in hash {
-        write!(&mut hexhash, "{digit:02x}");
+        let _ = write!(&mut hexhash, "{digit:02x}");
       }
       println!("Got 6 digit hash: {hexhash}, at {i}");
       break;