Adding some content to thread

src/kernel/scheduler.rs

@@ -3,7 +3,7 @@ use crate::kernel::thread::Thread;
 use crate::utility::system::{G_CURRENT_THREAD, G_THREAD_TO_BE_DESTROYED};
 
 
-struct Scheduler<> {
+struct Scheduler {
     ready_list: List<Thread>
 }