add unused_must_use lint

src/sync/barrier.rs

@@ -40,7 +40,7 @@ impl Barrier {
         if guard.count == self.original_count.get() {
             guard.gen_id = guard.gen_id.wrapping_add(1);
             guard.count = 0;
-            self.cvar.broadcast();
+            if let Ok(()) = self.cvar.broadcast() {}; // TODO handle error
 
             drop(guard);
 

src/sync/mod.rs

@@ -137,11 +137,10 @@ pub fn rttime() -> timespec {
     unsafe {
         let mut time = MaybeUninit::uninit();
 
-        // TODO: Handle error
-        Sys::clock_gettime(
+        if let Ok(()) = Sys::clock_gettime(
             crate::header::time::CLOCK_REALTIME,
             Out::from_uninit_mut(&mut time),
-        );
+        ) {}; // TODO handle error
 
         time.assume_init()
     }