diff --git a/libafl/Cargo.toml b/libafl/Cargo.toml
index e84a53d57d..c267577381 100644
--- a/libafl/Cargo.toml
+++ b/libafl/Cargo.toml
@@ -105,7 +105,7 @@ z3 = { version = "0.11", features = ["static-link-z3"], optional = true } # for
 pyo3 = { version = "0.18.3", optional = true, features = ["serde", "macros"] }
 concat-idents = { version = "1.1.3", optional = true }
 
-libcasr = { version = "2.5", optional = true}
+libcasr = { version = "2.7", optional = true}
 
 # optional-dev deps (change when target.'cfg(accessible(::std))'.test-dependencies will be stable)
 serial_test = { version = "2", optional = true }
diff --git a/libafl/src/events/mod.rs b/libafl/src/events/mod.rs
index dd74b482ae..65547aec24 100644
--- a/libafl/src/events/mod.rs
+++ b/libafl/src/events/mod.rs
@@ -72,7 +72,7 @@ pub unsafe fn shutdown_handler<SP>(
     signal: Signal,
     _info: siginfo_t,
     _context: &mut ucontext_t,
-    data: &mut ShutdownSignalData,
+    data: &ShutdownSignalData,
 ) where
     SP: ShMemProvider,
 {
diff --git a/libafl/src/executors/timeout.rs b/libafl/src/executors/timeout.rs
index 740c4be288..f9902e007f 100644
--- a/libafl/src/executors/timeout.rs
+++ b/libafl/src/executors/timeout.rs
@@ -218,7 +218,7 @@ impl<E> TimeoutExecutor<E> {
         self.exec_tmout = exec_tmout;
     }
 
-    pub(crate) fn handle_timeout(&mut self, data: &mut InProcessExecutorHandlerData) -> bool {
+    pub(crate) fn handle_timeout(&mut self, data: &InProcessExecutorHandlerData) -> bool {
         if !self.batch_mode {
             return false;
         }
diff --git a/libafl/src/observers/stacktrace.rs b/libafl/src/observers/stacktrace.rs
index 3e4dc1bdfe..86e27f60e5 100644
--- a/libafl/src/observers/stacktrace.rs
+++ b/libafl/src/observers/stacktrace.rs
@@ -23,8 +23,9 @@ use libcasr::{
     asan::AsanStacktrace,
     constants::{
         STACK_FRAME_FILEPATH_IGNORE_REGEXES_CPP, STACK_FRAME_FILEPATH_IGNORE_REGEXES_GO,
-        STACK_FRAME_FILEPATH_IGNORE_REGEXES_PYTHON, STACK_FRAME_FILEPATH_IGNORE_REGEXES_RUST,
-        STACK_FRAME_FUNCTION_IGNORE_REGEXES_CPP, STACK_FRAME_FUNCTION_IGNORE_REGEXES_GO,
+        STACK_FRAME_FILEPATH_IGNORE_REGEXES_JAVA, STACK_FRAME_FILEPATH_IGNORE_REGEXES_PYTHON,
+        STACK_FRAME_FILEPATH_IGNORE_REGEXES_RUST, STACK_FRAME_FUNCTION_IGNORE_REGEXES_CPP,
+        STACK_FRAME_FUNCTION_IGNORE_REGEXES_GO, STACK_FRAME_FUNCTION_IGNORE_REGEXES_JAVA,
         STACK_FRAME_FUNCTION_IGNORE_REGEXES_PYTHON, STACK_FRAME_FUNCTION_IGNORE_REGEXES_RUST,
     },
     init_ignored_frames,
diff --git a/libafl/src/schedulers/accounting.rs b/libafl/src/schedulers/accounting.rs
index 63e79eb8bb..54d8dcf080 100644
--- a/libafl/src/schedulers/accounting.rs
+++ b/libafl/src/schedulers/accounting.rs
@@ -280,7 +280,7 @@ where
 
     /// Cull the `Corpus`
     #[allow(clippy::unused_self)]
-    pub fn accounting_cull(&self, state: &mut CS::State) -> Result<(), Error> {
+    pub fn accounting_cull(&self, state: &CS::State) -> Result<(), Error> {
         let Some(top_rated) = state.metadata_map().get::<TopAccountingMetadata>() else {
             return Ok(());
         };
diff --git a/libafl/src/schedulers/minimizer.rs b/libafl/src/schedulers/minimizer.rs
index 43ad19500e..a1217e54e5 100644
--- a/libafl/src/schedulers/minimizer.rs
+++ b/libafl/src/schedulers/minimizer.rs
@@ -321,7 +321,7 @@ where
 
     /// Cull the `Corpus` using the `MinimizerScheduler`
     #[allow(clippy::unused_self)]
-    pub fn cull(&self, state: &mut CS::State) -> Result<(), Error> {
+    pub fn cull(&self, state: &CS::State) -> Result<(), Error> {
         let Some(top_rated) = state.metadata_map().get::<TopRatedsMetadata>() else {
             return Ok(());
         };
diff --git a/libafl/src/stages/colorization.rs b/libafl/src/stages/colorization.rs
index 9f26aaab56..206be61750 100644
--- a/libafl/src/stages/colorization.rs
+++ b/libafl/src/stages/colorization.rs
@@ -27,7 +27,7 @@ struct Bigger(Range<usize>);
 
 impl PartialOrd for Bigger {
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        self.0.len().partial_cmp(&other.0.len())
+        Some(self.cmp(other))
     }
 }
 
@@ -43,7 +43,7 @@ struct Earlier(Range<usize>);
 
 impl PartialOrd for Earlier {
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        other.0.start.partial_cmp(&self.0.start)
+        Some(self.cmp(other))
     }
 }
 
diff --git a/libafl/src/stages/tuneable.rs b/libafl/src/stages/tuneable.rs
index f7b45499e4..07bd6b3908 100644
--- a/libafl/src/stages/tuneable.rs
+++ b/libafl/src/stages/tuneable.rs
@@ -60,7 +60,7 @@ pub fn set_seed_fuzz_time<S: HasMetadata>(state: &mut S, fuzz_time: Duration) ->
 }
 
 /// Get the time for a single seed to be used by this mutational stage
-pub fn get_seed_fuzz_time<S: HasMetadata>(state: &mut S) -> Result<Option<Duration>, Error> {
+pub fn get_seed_fuzz_time<S: HasMetadata>(state: &S) -> Result<Option<Duration>, Error> {
     state
         .metadata_map()
         .get::<TuneableMutationalStageMetadata>()
@@ -262,7 +262,7 @@ impl TuneableMutationalStage<(), (), (), (), ()> {
     }
 
     /// Set the time to mutate a single input in this mutational stage
-    pub fn seed_fuzz_time<S: HasMetadata>(state: &mut S) -> Result<Option<Duration>, Error> {
+    pub fn seed_fuzz_time<S: HasMetadata>(state: &S) -> Result<Option<Duration>, Error> {
         get_seed_fuzz_time(state)
     }
 }
diff --git a/libafl_qemu/src/lib.rs b/libafl_qemu/src/lib.rs
index 8a9d42903e..f0155783b4 100644
--- a/libafl_qemu/src/lib.rs
+++ b/libafl_qemu/src/lib.rs
@@ -7,6 +7,7 @@
     allow(clippy::useless_conversion)
 )]
 #![allow(clippy::needless_pass_by_value)]
+#![allow(clippy::needless_pass_by_ref_mut)]
 #![allow(clippy::transmute_ptr_to_ptr)]
 #![allow(clippy::ptr_cast_constness)]
 #![allow(clippy::too_many_arguments)]