fix clippy warnings on util and rpc

src/util/data.rs

@@ -72,7 +72,7 @@ impl FixedBytes32 {
 		&mut self.0[..]
 	}
 	/// Copy to a slice
-	pub fn to_vec(&self) -> Vec<u8> {
+	pub fn to_vec(self) -> Vec<u8> {
 		self.0.to_vec()
 	}
 	/// Try building a FixedBytes32 from a slice

src/util/error.rs

@@ -93,12 +93,12 @@ impl From<sled::transaction::TransactionError<Error>> for Error {
 
 impl<T> From<tokio::sync::watch::error::SendError<T>> for Error {
 	fn from(_e: tokio::sync::watch::error::SendError<T>) -> Error {
-		Error::Message(format!("Watch send error"))
+		Error::Message("Watch send error".to_string())
 	}
 }
 
 impl<T> From<tokio::sync::mpsc::error::SendError<T>> for Error {
 	fn from(_e: tokio::sync::mpsc::error::SendError<T>) -> Error {
-		Error::Message(format!("MPSC send error"))
+		Error::Message("MPSC send error".to_string())
 	}
 }

src/util/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::upper_case_acronyms)]
 //! Crate containing common functions and types used in Garage
 
 #[macro_use]

src/util/persister.rs

@@ -1,5 +1,5 @@
 use std::io::{Read, Write};
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 
 use tokio::io::{AsyncReadExt, AsyncWriteExt};
 
@@ -18,8 +18,8 @@ impl<T> Persister<T>
 where
 	T: Serialize + for<'de> Deserialize<'de>,
 {
-	pub fn new(base_dir: &PathBuf, file_name: &str) -> Self {
-		let mut path = base_dir.clone();
+	pub fn new(base_dir: &Path, file_name: &str) -> Self {
+		let mut path = base_dir.to_path_buf();
 		path.push(file_name);
 		Self {
 			path,