derive default for FallbackSettings

Signed-off-by: hi-rustin <[email protected]>

Author: 0xPoe

src/fallback_settings.rs

@@ -6,19 +6,11 @@ use anyhow::{Context, Result};
 
 use crate::utils::utils;
 
-#[derive(Clone, Debug, Deserialize, PartialEq)]
+#[derive(Clone, Debug, Deserialize, PartialEq, Default)]
 pub struct FallbackSettings {
     pub default_toolchain: Option<String>,
 }
 
-impl Default for FallbackSettings {
-    fn default() -> Self {
-        Self {
-            default_toolchain: None,
-        }
-    }
-}
-
 impl FallbackSettings {
     pub(crate) fn new<P: AsRef<Path>>(path: P) -> Result<Option<Self>> {
         // Users cannot fix issues with missing/unreadable/invalid centralised files, but logging isn't setup early so