clippy: remove/replace needless explicit lifetimes

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

src/pxar/fuse.rs

@@ -480,11 +480,11 @@ impl SessionImpl {
         Ok(())
     }
 
-    async fn lookup<'a>(
-        &'a self,
+    async fn lookup(
+        &'_ self,
         parent: u64,
         file_name: &OsStr,
-    ) -> Result<(EntryParam, LookupRef<'a>), Error> {
+    ) -> Result<(EntryParam, LookupRef<'_>), Error> {
         let dir = self.open_dir(parent).await?;
 
         let entry = match { dir }.lookup(file_name).await? {
@@ -519,10 +519,10 @@ impl SessionImpl {
         to_stat(inode, &entry)
     }
 
-    async fn readdirplus<'a>(
-        &'a self,
+    async fn readdirplus(
+        &'_ self,
         request: &mut requests::ReaddirPlus,
-    ) -> Result<Vec<LookupRef<'a>>, Error> {
+    ) -> Result<Vec<LookupRef<'_>>, Error> {
         let mut lookups = Vec::new();
         let offset = usize::try_from(request.offset)
             .map_err(|_| io_format_err!("directory offset out of range"))?;

src/tools/lru_cache.rs

@@ -173,7 +173,7 @@ impl<K: std::cmp::Eq + std::hash::Hash + Copy, V> LruCache<K, V> {
     /// Get a mutable reference to the value identified by `key`.
     /// This will update the cache entry to be the most recently used entry.
     /// On cache misses, None is returned.
-    pub fn get_mut<'a>(&'a mut self, key: K) -> Option<&'a mut V> {
+    pub fn get_mut(&mut self, key: K) -> Option<&mut V> {
         let node_ptr = self.map.get(&key)?;
         self.list.bring_to_front(*node_ptr);
         Some(unsafe { &mut (*self.list.head).value })

src/tools/systemd/time.rs

@@ -142,7 +142,7 @@ impl From<TimeSpan> for f64 {
 }
 
 
-pub fn verify_time_span<'a>(i: &'a str) -> Result<(), Error> {
+pub fn verify_time_span(i: &str) -> Result<(), Error> {
     parse_time_span(i)?;
     Ok(())
 }