Fix lints

Signed-off-by: Alex Saveau <[email protected]>

Author: SUPERCILEX

llvm-plugin/build.rs

@@ -98,7 +98,7 @@ mod llvm_sys {
     fn locate_llvm_config() -> Option<PathBuf> {
         let prefix = env::var_os(&*ENV_LLVM_PREFIX)
             .map(|p| PathBuf::from(p).join("bin"))
-            .unwrap_or_else(PathBuf::new);
+            .unwrap_or_default();
         for binary_name in llvm_config_binary_names() {
             let binary_name = prefix.join(binary_name);
             match llvm_version(&binary_name) {

llvm-plugin/src/analysis.rs

@@ -125,7 +125,7 @@ impl FunctionAnalysisManager {
             }
 
             Box::into_raw(pass);
-            #[allow(clippy::forget_copy)]
+            #[allow(forgetting_copy_types)]
             std::mem::forget(function);
         }
 

llvm-plugin/src/pass_manager.rs

@@ -111,7 +111,7 @@ impl FunctionPassManager {
             let preserve = pass.run_pass(&mut function, &manager);
 
             Box::into_raw(pass);
-            #[allow(clippy::forget_copy)]
+            #[allow(forgetting_copy_types)]
             std::mem::forget(function);
 
             preserve