reduce amount of warnings

rust/src/hal/mod.rs

@@ -113,7 +113,7 @@ pub trait BoardInteraction<'a> {
 
 impl dyn BoardInteraction<'_> {
     //the counter is just some arbitrary number that increases whenever some progress was made, try to keep the updates < 10 per second for ux reasons
-    fn progress(&mut self, counter: u32) {
+    fn _progress(&mut self, counter: u32) {
         let even = counter % 2 == 0;
         let current = counter / (PLANT_COUNT as u32);
         for led in 0..PLANT_COUNT {