manually fix clippy

Author: reneleonhardt

crates/hstr/benches/libs.rs

@@ -4,12 +4,11 @@ extern crate swc_malloc;
 
 #[macro_use]
 extern crate criterion;
-use std::{hash::Hash, mem::forget};
-
+use std::{hash::Hash, mem::forget, hint::black_box};
 use compact_str::CompactString;
-use criterion::{black_box, BatchSize, BenchmarkId, Criterion};
+use criterion::{BatchSize, BenchmarkId, Criterion};
 use par_iter::prelude::*;
-use rand::distributions::{Alphanumeric, DistString};
+use rand::distr::{Alphanumeric, SampleString};
 use rustc_hash::FxHashSet;
 use smartstring::{LazyCompact, SmartString};
 
@@ -326,5 +325,5 @@ criterion_group!(
 criterion_main!(benches);
 
 fn random_string(len: usize) -> String {
-    Alphanumeric.sample_string(&mut rand::thread_rng(), len)
+    Alphanumeric.sample_string(&mut rand::rng(), len)
 }

crates/swc_ecma_compat_es2015/src/classes/mod.rs

@@ -937,6 +937,7 @@ impl Classes {
 }
 
 #[tracing::instrument(level = "debug", skip_all)]
+#[allow(dead_code)]
 fn inject_class_call_check(c: &mut Vec<Stmt>, name: Ident) {
     let mut class_name_sym = name.clone();
     class_name_sym.span = DUMMY_SP;
@@ -958,6 +959,7 @@ fn inject_class_call_check(c: &mut Vec<Stmt>, name: Ident) {
 
 /// Returns true if no `super` is used before `super()` call.
 #[tracing::instrument(level = "debug", skip_all)]
+#[allow(dead_code)]
 fn is_always_initialized(body: &[Stmt]) -> bool {
     struct SuperFinder {
         found: bool,

crates/swc_plugin_backend_wasmer/src/lib.rs

@@ -25,7 +25,7 @@ static ENGINE: Lazy<Mutex<wasmer::Engine>> = Lazy::new(|| {
     // Use empty enumset to disable simd.
     use enumset::EnumSet;
     use wasmer::sys::{BaseTunables, CompilerConfig, EngineBuilder, Target, Triple};
-    let set = EnumSet::new();
+    let mut set = EnumSet::new();
 
     // [TODO]: Should we use is_x86_feature_detected! macro instead?
     #[cfg(target_arch = "x86_64")]