chore: fix format

Author: liuq19

scripts/fmt_fix.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
+
+cd "${REPO_ROOT}"
+
+echo "Updating Rust toolchain..."
+rustup update
+
+if [[ "${1:-}" == "--check" ]]; then
+    cargo fmt --all -- --check
+else
+    cargo fmt --all
+fi
+

src/serde/ser.rs

@@ -71,7 +71,7 @@ where
     }
 
     /// Enable sorting map keys before serialization.
-    /// 
+    ///
     /// # Examples
     /// ```
     /// use serde::Serialize;
@@ -787,10 +787,9 @@ where
                     let key = next_key
                         .take()
                         .expect("serialize_value called before serialize_key");
-                    let mut entry_ser = Serializer::with_formatter(
-                        Vec::with_capacity(128),
-                        ser.formatter.clone(),
-                    ).with_cfg(ser.cfg);
+                    let mut entry_ser =
+                        Serializer::with_formatter(Vec::with_capacity(128), ser.formatter.clone())
+                            .with_cfg(ser.cfg);
                     tri!(value.serialize(&mut entry_ser));
                     let stored = entry_ser.into_inner();
                     entries.push((key, stored));

src/value/ser.rs

@@ -867,6 +867,7 @@ mod test {
     use std::collections::HashMap;
 
     use serde::{Deserialize, Serialize};
+
     use crate::{to_value, Value};
 
     #[derive(Debug, serde::Serialize, Hash, Default, Eq, PartialEq)]
@@ -878,7 +879,6 @@ mod test {
 
     #[test]
     fn test_to_value() {
-
         let user = User {
             string: "hello".into(),
             number: 123,