fix clippy

Author: loongs-zhang

monoio/src/driver/op/recv.rs

@@ -114,7 +114,7 @@ impl<T: IoBufMut> OpAble for Recv<T> {
             recv(
                 fd as _,
                 self.buf.write_ptr(),
-                self.buf.bytes_total() as _,
+                self.buf.bytes_total().min(i32::MAX as usize) as _,
                 0
             ),
             PartialOrd::lt,

monoio/src/driver/shared_fd.rs

@@ -495,7 +495,7 @@ impl Inner {
                     }
                     UringState::Waiting(Some(waker)) => {
                         if !waker.will_wake(cx.waker()) {
-                            *waker = cx.waker().clone();
+                            waker.clone_from(cx.waker());
                         }
 
                         Poll::Pending