fix clippy

Signed-off-by: zhangjinpeng87 <zzzhangjinpeng@gmail.com>

Author: zhangjinpeng87

Cargo.toml

@@ -67,6 +67,9 @@ thiserror = "1.0"
 criterion = "0.4"
 ctor = "0.2"
 env_logger = "0.10"
+grpcio = { version = "=0.10.2", default-features = false, features = [
+  "protobuf-codec",
+] }
 kvproto = { git = "https://github.com/pingcap/kvproto.git", branch = "release-8.5", default-features = false, features = [
   "protobuf-codec",
 ] }

Makefile

@@ -44,6 +44,10 @@ format:
 CLIPPY_WHITELIST += -A clippy::bool_assert_comparison
 ## Run clippy.
 clippy:
+	# Fresh lockfile resolution can pull grpcio 0.13.x via kvproto (grpcio = "0.*"),
+	# which fails to build on macOS arm64 in current CI images. Force a compatible
+	# selection before linting.
+	cargo ${TOOLCHAIN_ARGS} update -p grpcio@0.13.0 --precise 0.10.2 || true
 ifdef WITH_NIGHTLY_FEATURES
 	cargo ${TOOLCHAIN_ARGS} clippy --all --features nightly_group,failpoints --all-targets -- -D clippy::all ${CLIPPY_WHITELIST}
 else

src/engine.rs

@@ -1410,7 +1410,7 @@ pub(crate) mod tests {
         let empty_entry = Entry::new();
         assert_eq!(empty_entry.compute_size(), 0);
         log_batch
-            .add_entries::<Entry>(0, &[empty_entry.clone()])
+            .add_entries::<Entry>(0, std::slice::from_ref(&empty_entry))
             .unwrap();
         engine.write(&mut log_batch, false).unwrap();
         let empty_state = RaftLocalState::new();
@@ -1420,7 +1420,7 @@ pub(crate) mod tests {
             .unwrap();
         engine.write(&mut log_batch, false).unwrap();
         log_batch
-            .add_entries::<Entry>(2, &[empty_entry.clone()])
+            .add_entries::<Entry>(2, std::slice::from_ref(&empty_entry))
             .unwrap();
         log_batch
             .put_message(2, b"key".to_vec(), &empty_state)

tests/benches/bench_recovery.rs

@@ -116,7 +116,7 @@ fn dir_size(path: &str) -> ReadableSize {
 
 fn bench_recovery(c: &mut Criterion) {
     // prepare input
-    let cfgs = vec![
+    let cfgs = [
         (
             "default".to_owned(),
             Config {