Fix Clippy warnings

Author: Thomasdezeeuw

src/lib.rs

@@ -680,6 +680,7 @@ impl<'addr, 'bufs, 'control> MsgHdrMut<'addr, 'bufs, 'control> {
     ///
     /// Corresponds to setting `msg_name` and `msg_namelen` on Unix and `name`
     /// and `namelen` on Windows.
+    #[allow(clippy::needless_pass_by_ref_mut)]
     pub fn with_addr(mut self, addr: &'addr mut SockAddr) -> Self {
         sys::set_msghdr_name(&mut self.inner, addr);
         self

src/sys/unix.rs

@@ -2711,7 +2711,7 @@ impl crate::Socket {
         .map(|_| {
             let buf = &payload[..len as usize];
             // TODO: use `MaybeUninit::slice_assume_init_ref` once stable.
-            unsafe { &*(buf as *const [_] as *const [u8]) }.into()
+            unsafe { &*(buf as *const [u8]) }.into()
         })
     }