chore: Fix clippy warnings for fmt strings

Author: Florian Guggi

scheduler/src/command/execute_program.rs

@@ -44,7 +44,7 @@ pub fn execute_program(
     let wd_handle = std::thread::spawn(move || {
         let exit_code = supervise_process(student_process, timeout, &mut wd_context).unwrap_or(255);
 
-        log::info!("Program {}:{} finished with {}", program_id, timestamp, exit_code);
+        log::info!("Program {program_id}:{timestamp} finished with {exit_code}");
         let sid = ProgramStatus { program_id, timestamp, exit_code };
         let rid = ResultId { program_id, timestamp };
         build_result_archive(rid).unwrap(); // create the tar file with result and log

scheduler/src/command/return_result.rs

@@ -26,7 +26,7 @@ pub fn return_result(
     }
 
     let bytes = std::fs::read(result_path)?;
-    log::info!("Returning result for {}:{}", program_id, timestamp);
+    log::info!("Returning result for {program_id}:{timestamp}");
     com.send_multi_packet(&bytes)?;
 
     com.await_ack(COMMAND_TIMEOUT)?;

scheduler/src/command/store_archive.rs

@@ -15,7 +15,7 @@ pub fn store_archive(
     check_length(com, data, 3)?;
 
     let id = u16::from_le_bytes([data[1], data[2]]).to_string();
-    log::info!("Storing Archive {}", id);
+    log::info!("Storing Archive {id}");
 
     let bytes = com.receive_multi_packet()?;
     unpack_archive(&id, &bytes)?;

scheduler/src/communication/mod.rs

@@ -108,7 +108,7 @@ pub trait CommunicationHandle: Read + Write {
                     return Err(CommunicationError::TimedOut);
                 }
                 e => {
-                    log::error!("Received invalid data {:?}", e);
+                    log::error!("Received invalid data {e:?}");
                     self.send_packet(&CEPPacket::Nack)?;
                 }
             }