Fix clippy lints.

Author: sunfishcode

src/lib.rs

@@ -606,8 +606,8 @@ impl<T: AsRawFd> Async<T> {
         // `AsFd` is stabilized and `TimerFd` implements it, we can
         // remove this unsafe and simplify this.
         let fd = unsafe { rustix::fd::BorrowedFd::borrow_raw(raw) };
-        let flags = rustix::fs::fcntl_getfl(&fd)?;
-        rustix::fs::fcntl_setfl(&fd, flags | rustix::fs::OFlags::NONBLOCK)?;
+        let flags = rustix::fs::fcntl_getfl(fd)?;
+        rustix::fs::fcntl_setfl(fd, flags | rustix::fs::OFlags::NONBLOCK)?;
 
         Ok(Async {
             source: Reactor::get().insert_io(raw)?,