low prio warnings--

fuzzers/FRET/src/fuzzer.rs

@@ -361,7 +361,7 @@ let run_client = |state: Option<_>, mut mgr, _core_id| {
                 .find(|pc| (breakpoint..breakpoint + 5).contains(pc.as_ref().unwrap_or(&0)))
             {
                 Some(_) => ExitKind::Ok,
-                None => ExitKind::Crash,
+                Option::None => ExitKind::Crash,
             }
         }
     };
@@ -556,7 +556,7 @@ let run_client = |state: Option<_>, mut mgr, _core_id| {
             }
 
             match time {
-                None => {
+                Option::None => {
                     fuzzer
                         .fuzz_loop(&mut stages, &mut executor, &mut state, &mut mgr)
                         .unwrap();

fuzzers/FRET/src/systemstate/helpers.rs

@@ -280,7 +280,7 @@ fn trigger_collection(emulator: &libafl_qemu::Qemu, edge: (GuestAddr, GuestAddr)
     let mut buf : [u8; 4] = [0,0,0,0];
     match h.input_counter {
         Some(s) => unsafe { emulator.read_mem(s, &mut buf); },
-        None => (),
+        Option::None => (),
     };
     systemstate.input_counter = GuestAddr::from_le_bytes(buf);
 
@@ -436,6 +436,7 @@ where
 }
 
 //============================= Read Hooks
+#[allow(unused)]
 pub fn gen_read_is_input<QT, S>(
     hooks: &mut QemuHooks<QT, S>,
     _state: Option<&mut S>,
@@ -459,6 +460,7 @@ where
 static mut INPUT_MEM : Range<GuestAddr> = 0..0;
 static mut MEM_READ : Option<HashSet<GuestAddr>> = None;
 
+#[allow(unused)]
 pub fn trace_reads<QT, S>(
     _hooks: &mut QemuHooks<QT, S>,
     _state: Option<&mut S>,

fuzzers/FRET/src/systemstate/schedulers.rs

@@ -188,7 +188,7 @@ where
                 // println!("normal next: {}", (*c).0);
                 return Ok((*c).0.into())
             },
-            None => {
+            Option::None => {
                 swap(&mut to_remove, &mut gm.current_gen);
                 swap(&mut gm.next_gen, &mut gm.current_gen);
                 gm.current_gen.sort_by(|a, b| a.1.partial_cmp(&b.1).unwrap());

libafl/src/fuzzer/mod.rs

@@ -335,7 +335,7 @@ where
         // But as the state may grow to a few megabytes,
         // for now we won' and the user has to do it (unless we find a way to do this on `Drop`).
 
-        if let None = ret {
+        if ret.is_none() {
             eprintln!("Warning: fuzzing loop ended with no last element");
             ret = Some(crate::corpus::CorpusId(0));
         }