diff --git a/kernel/src/main.rs b/kernel/src/main.rs
index 2dcceed..bda1af3 100644
--- a/kernel/src/main.rs
+++ b/kernel/src/main.rs
@@ -7,7 +7,6 @@
 #![feature(concat_idents)]
 #![feature(let_chains)]
 #![feature(naked_functions)]
-#![feature(panic_info_message)]
 #![feature(thread_local)]
 // Test Infrastructure
 #![feature(custom_test_frameworks)]
diff --git a/kernel/src/syscall.rs b/kernel/src/syscall.rs
index 2265eeb..8c6c43f 100644
--- a/kernel/src/syscall.rs
+++ b/kernel/src/syscall.rs
@@ -9,7 +9,7 @@ pub fn handle_syscall(tcb: &mut TcbObject) -> SysResult {
     let cap_ptr = tcb.trapframe.get_reg(1);
     let cap = cspace
         .resolve_address_bits(cap_ptr, usize::BITS as usize)
-        .map_err(|e| SysError::from(e))?;
+        .map_err(SysError::from)?;
 
     trace!("handle_syscall: info={:?} cap={:?}", info, cap);
 
@@ -22,7 +22,7 @@ pub fn handle_syscall(tcb: &mut TcbObject) -> SysResult {
             let c = tcb.trapframe.get_reg(2) as u8 as char;
             crate::print!("{}", c);
 
-            return Ok(());
+            Ok(())
         },
         _ => unimplemented!("handle_syscall: {:?}, {:?}", info.label(), cap),
     }