automated clippy fixes

server/base/shutdown.rs

@@ -139,7 +139,7 @@ fn poll_impl(inner: &Inner, waker_i: &mut usize, cx: &mut Context<'_>) -> Poll<(
     Poll::Pending
 }
 
-impl<'receiver> Future for ReceiverRefFuture<'receiver> {
+impl Future for ReceiverRefFuture<'_> {
     type Output = ();
 
     fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {

server/db/db.rs

@@ -2444,7 +2444,7 @@ pub struct DatabaseGuard<'db, C: Clocks> {
     _timer: clock::TimerGuard<'db, C, &'static str, fn() -> &'static str>,
 }
 
-impl<'db, C: Clocks + Clone> DatabaseGuard<'db, C> {
+impl<C: Clocks + Clone> DatabaseGuard<'_, C> {
     /// Tries to flush unwritten changes from the stream directories.
     ///
     ///    * commits any recordings added with `add_recording` that have since been marked as
@@ -2459,14 +2459,14 @@ impl<'db, C: Clocks + Clone> DatabaseGuard<'db, C> {
     }
 }
 
-impl<'db, C: Clocks + Clone> ::std::ops::Deref for DatabaseGuard<'db, C> {
+impl<C: Clocks + Clone> ::std::ops::Deref for DatabaseGuard<'_, C> {
     type Target = LockedDatabase;
     fn deref(&self) -> &LockedDatabase {
         &self.db
     }
 }
 
-impl<'db, C: Clocks + Clone> ::std::ops::DerefMut for DatabaseGuard<'db, C> {
+impl<C: Clocks + Clone> ::std::ops::DerefMut for DatabaseGuard<'_, C> {
     fn deref_mut(&mut self) -> &mut LockedDatabase {
         &mut self.db
     }

server/db/recording.rs

@@ -395,10 +395,7 @@ impl Segment {
             if let Err(e) = f(&it) {
                 return Err(e);
             }
-            have_frame = match it.next(data) {
-                Err(e) => return Err(e),
-                Ok(hf) => hf,
-            };
+            have_frame = it.next(data)?;
         }
         if key_frame < self.key_frames {
             bail!(

server/db/writer.rs

@@ -985,7 +985,7 @@ impl<F: FileWriter> InnerWriter<F> {
     }
 }
 
-impl<'a, C: Clocks + Clone, D: DirWriter> Drop for Writer<'a, C, D> {
+impl<C: Clocks + Clone, D: DirWriter> Drop for Writer<'_, C, D> {
     fn drop(&mut self) {
         if ::std::thread::panicking() {
             // This will probably panic again. Don't do it.

server/src/json.rs

@@ -376,7 +376,7 @@ struct SignalDayValue<'a> {
     pub states: &'a [u64],
 }
 
-impl<'a> TopLevel<'a> {
+impl TopLevel<'_> {
     /// Serializes cameras as a list (rather than a map), optionally including the `days` and
     /// `cameras` fields.
     fn serialize_cameras<S>(
@@ -440,7 +440,7 @@ pub struct ListRecordings<'a> {
     pub video_sample_entries: (&'a db::LockedDatabase, Vec<i32>),
 }
 
-impl<'a> ListRecordings<'a> {
+impl ListRecordings<'_> {
     fn serialize_video_sample_entries<S>(
         video_sample_entries: &(&db::LockedDatabase, Vec<i32>),
         serializer: S,

server/src/web/static_file.rs

@@ -129,10 +129,7 @@ impl<'a> StaticFileRequest<'a> {
             p => (p, true),
         };
 
-        let last_dot = match path.rfind('.') {
-            None => return None,
-            Some(d) => d,
-        };
+        let last_dot = path.rfind('.')?;
         let ext = &path[last_dot + 1..];
         let mime = match ext {
             "css" => "text/css",