Use common rust formatting

src/main.rs

@@ -1,11 +1,8 @@
 use axum::{
+    http::StatusCode,
+    response::{IntoResponse, Response},
     routing::get,
     Router,
-  response::{
-      IntoResponse,
-      Response,
-  },
-  http::StatusCode,
 };
 
 use std::net::SocketAddr;
@@ -20,7 +17,7 @@ async fn main() {
         let arg = if let Some(arg) = args.next() {
             arg
         } else {
-      break
+            break;
         };
 
         match arg.as_str() {
@@ -29,10 +26,10 @@ async fn main() {
                 println!("Use --listen <addr:port> bind the web service.");
                 println!("Output will be on /metrics endpoint. HTTP 500 if something broke while scraping.");
                 std::process::exit(0);
-      },
+            }
             "--listen" => {
                 listen = args.next().unwrap();
-      },
+            }
             unknown => {
                 println!("unknown option: {}", unknown);
                 std::process::exit(1)
@@ -53,10 +50,11 @@ async fn main() {
 fn get_current_system() -> Result<(String, String), String> {
     let symlink = match std::fs::read_link("/run/current-system") {
         Ok(symlink) => symlink,
-    Err(err) => return Err(err.to_string())
+        Err(err) => return Err(err.to_string()),
     };
 
-  let (hash, name) = symlink.file_name()
+    let (hash, name) = symlink
+        .file_name()
         .ok_or_else(String::default)?
         .to_str()
         .ok_or_else(String::default)?
@@ -72,7 +70,7 @@ async fn metrics() -> Response {
         Ok((hash, name)) => (hash, name),
         Err(err) => {
             println!("failed: {}", err);
-      return (StatusCode::INTERNAL_SERVER_ERROR, "").into_response()
+            return (StatusCode::INTERNAL_SERVER_ERROR, "").into_response();
         }
     };