Clippy fixes

wayland-backend/src/debug.rs

@@ -58,7 +58,7 @@ pub fn print_send_message<Id: Display, Fd: AsRawFd>(
 
 pub(crate) struct DisplaySlice<'a, D>(pub &'a [D]);
 
-impl<'a, D: Display> Display for DisplaySlice<'a, D> {
+impl<D: Display> Display for DisplaySlice<'_, D> {
     #[cfg_attr(coverage, coverage(off))]
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         let mut it = self.0.iter();

wayland-client/src/event_queue.rs

@@ -651,7 +651,7 @@ impl<State: 'static> QueueHandle<State> {
     }
 }
 
-impl<'a, State> Drop for QueueFreezeGuard<'a, State> {
+impl<State> Drop for QueueFreezeGuard<'_, State> {
     fn drop(&mut self) {
         let mut lock = self.qh.inner.lock().unwrap();
         lock.freeze_count -= 1;

wayland-server/src/dispatch.rs

@@ -155,7 +155,7 @@ pub struct DataInit<'a, D: 'static> {
     pub(crate) error: &'a mut Option<(u32, String)>,
 }
 
-impl<'a, D> DataInit<'a, D> {
+impl<D> DataInit<'_, D> {
     /// Initialize an object by assigning it its user-data
     pub fn init<I: Resource + 'static, U: Send + Sync + 'static>(
         &mut self,

wayland-sys/src/server.rs

@@ -251,6 +251,7 @@ pub mod signal {
         // Safety: the signal pointer is valid
         unsafe {
             list_for_each!(l, &mut (*signal).listener_list as *mut wl_list, wl_listener, link, {
+                #[allow(unknown_lints, unpredictable_function_pointer_comparisons)]
                 if (*l).notify == notify {
                     return l;
                 }