chore(ci): Use stable toolchain for rustfmt/clippy (#689)

Author: JohnTitor

.github/workflows/ci.yml

@@ -28,10 +28,10 @@ jobs:
         uses: Swatinem/rust-cache@v2
 
       - name: Check formatting
-        run: cargo fmt --all -- --check
+        run: cargo +stable fmt --all -- --check
 
       - name: Clippy
-        run: cargo clippy --all-targets --all-features -- -D warnings
+        run: cargo +stable clippy --all-targets --all-features -- -D warnings
 
       - name: Install typos-cli
         uses: taiki-e/install-action@v2

notify-debouncer-full/src/lib.rs

@@ -163,7 +163,7 @@ struct Queue {
 
 impl Queue {
     fn was_created(&self) -> bool {
-        self.events.front().map_or(false, |event| {
+        self.events.front().is_some_and(|event| {
             matches!(
                 event.kind,
                 EventKind::Create(_) | EventKind::Modify(ModifyKind::Name(RenameMode::To))
@@ -172,7 +172,7 @@ impl Queue {
     }
 
     fn was_removed(&self) -> bool {
-        self.events.front().map_or(false, |event| {
+        self.events.front().is_some_and(|event| {
             matches!(
                 event.kind,
                 EventKind::Remove(_) | EventKind::Modify(ModifyKind::Name(RenameMode::From))

notify-types/src/lib.rs

@@ -10,6 +10,7 @@ mod tests {
     fn test_debug_impl() {
         macro_rules! assert_debug_impl {
             ($t:ty) => {{
+                #[allow(dead_code)]
                 trait NeedsDebug: std::fmt::Debug {}
                 impl NeedsDebug for $t {}
             }};

notify/src/error.rs

@@ -166,9 +166,6 @@ fn display_formatted_errors() {
 
     assert_eq!(
         expected,
-        format!(
-            "{}",
-            Error::io(io::Error::new(io::ErrorKind::Other, expected))
-        )
+        format!("{}", Error::io(io::Error::other(expected)))
     );
 }

notify/src/inotify.rs

@@ -244,13 +244,9 @@ impl EventLoop {
                                         .add_some_path(path.clone()),
                                 );
 
-                                let trackers_match = self
-                                    .rename_event
-                                    .as_ref()
-                                    .and_then(|e| e.tracker())
-                                    .map_or(false, |from_tracker| {
-                                        from_tracker == event.cookie as usize
-                                    });
+                                let trackers_match =
+                                    self.rename_event.as_ref().and_then(|e| e.tracker())
+                                        == Some(event.cookie as usize);
 
                                 if trackers_match {
                                     let rename_event = self.rename_event.take().unwrap(); // unwrap is safe because `rename_event` must be set at this point

notify/src/lib.rs

@@ -409,6 +409,7 @@ mod tests {
     fn test_debug_impl() {
         macro_rules! assert_debug_impl {
             ($t:ty) => {{
+                #[allow(dead_code)]
                 trait NeedsDebug: std::fmt::Debug {}
                 impl NeedsDebug for $t {}
             }};