Don't use move semantics if not needed (#8793)

faucet/src/faucet.rs

@@ -127,7 +127,7 @@ impl Faucet {
 
                     let create_instruction =
                         system_instruction::transfer(&self.mint_keypair.pubkey(), &to, lamports);
-                    let message = Message::new(vec![create_instruction]);
+                    let message = Message::new(&[create_instruction]);
                     Ok(Transaction::new(&[&self.mint_keypair], message, blockhash))
                 } else {
                     Err(Error::new(
@@ -413,7 +413,7 @@ mod tests {
 
         let keypair = Keypair::new();
         let expected_instruction = system_instruction::transfer(&keypair.pubkey(), &to, lamports);
-        let message = Message::new(vec![expected_instruction]);
+        let message = Message::new(&[expected_instruction]);
         let expected_tx = Transaction::new(&[&keypair], message, blockhash);
         let expected_bytes = serialize(&expected_tx).unwrap();
         let mut expected_vec_with_length = vec![0; 2];

faucet/tests/local-faucet.rs

@@ -16,7 +16,7 @@ fn test_local_faucet() {
     let lamports = 50;
     let blockhash = Hash::new(&to.as_ref());
     let create_instruction = system_instruction::transfer(&keypair.pubkey(), &to, lamports);
-    let message = Message::new(vec![create_instruction]);
+    let message = Message::new(&[create_instruction]);
     let expected_tx = Transaction::new(&[&keypair], message, blockhash);
 
     let (sender, receiver) = channel();