clean code with clippy

src/model/user.rs

@@ -80,7 +80,7 @@ pub enum LoginError {
     NotACox,
     NotATech,
     GuestNotAllowed,
-    NoPasswordSet(User),
+    NoPasswordSet(Box<User>),
     DeserializationError,
 }
 
@@ -706,7 +706,7 @@ ORDER BY last_access DESC
             Err(LoginError::InvalidAuthenticationCombo)
         } else {
             info!("User {name} has no PW set");
-            Err(LoginError::NoPasswordSet(user))
+            Err(LoginError::NoPasswordSet(Box::new(user)))
         }
     }