style: Make clippy happy

Author: epage

src/file/format/toml.rs

@@ -15,7 +15,7 @@ pub(crate) fn parse(
 
 fn from_toml_value(uri: Option<&String>, value: &toml::Value) -> Value {
     match *value {
-        toml::Value::String(ref value) => Value::new(uri, value.to_string()),
+        toml::Value::String(ref value) => Value::new(uri, value.clone()),
         toml::Value::Float(value) => Value::new(uri, value),
         toml::Value::Integer(value) => Value::new(uri, value),
         toml::Value::Boolean(value) => Value::new(uri, value),

src/file/format/yaml.rs

@@ -37,7 +37,7 @@ fn from_yaml_value(
             value
                 .parse::<f64>()
                 .map_err(|_| {
-                    Box::new(FloatParsingError(value.to_string())) as Box<(dyn Error + Send + Sync)>
+                    Box::new(FloatParsingError(value.clone())) as Box<(dyn Error + Send + Sync)>
                 })
                 .map(ValueKind::Float)
                 .map(|f| Value::new(uri, f))