message: Removed unused mut
diff: @@ -29,7 +29,7 @@ impl JITEngine {
  /// Create a new `JITEngine` with the given config
  #[cfg(feature = "compiler")]
  pub fn new(
  - mut config: Box<dyn CompilerConfig>,
  + config: Box<dyn CompilerConfig>,
  tunables: impl Tunables + 'static + Send + Sync,
  ) -> Self {
  let compiler = config.compiler();
  