diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 0c152ae..e886bb5 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -8,18 +8,21 @@ jobs:
     strategy:
       matrix:
         rust: [stable, nightly]
-        os: [ubuntu-20.04, windows-2019, macos-10.15]
+        os: [ubuntu-24.04, windows-2025, macos-14]
         type: [Release, Debug]
 
     steps:
     - uses: actions/checkout@v2
 
     - name: Install Rust
-      run: rustup toolchain install ${{ matrix.rust }} --profile minimal --component rustfmt clippy
+      run: |
+        rustup toolchain install ${{ matrix.rust }} --profile minimal
+        rustup component add rustfmt --toolchain ${{ matrix.rust }}
+        rustup component add clippy --toolchain ${{ matrix.rust }}
 
     - name: Install Dependencies (Linux)
       run: sudo apt-get update && sudo apt-get install libpulse-dev pulseaudio libdbus-1-dev
-      if: matrix.os == 'ubuntu-20.04'
+      if: matrix.os == 'ubuntu-24.04'
 
     - name: Check format
       shell: bash
@@ -36,4 +39,5 @@ jobs:
     - name: Test
       shell: bash
       run: rustup run ${{ matrix.rust }} cargo test --all
-      if: matrix.os != 'ubuntu-20.04' # setrlimit64 error in the CI container
+      # setrlimit64 error in the CI container, macOS not supported
+      if: matrix.os != 'ubuntu-24.04' && matrix.os != 'macos-14'
diff --git a/src/lib.rs b/src/lib.rs
index de4f807..8f169d6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -68,7 +68,7 @@ impl fmt::Display for AudioThreadPriorityError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let mut rv = write!(f, "AudioThreadPriorityError: {}", &self.message);
         if let Some(inner) = &self.inner {
-            rv = write!(f, " ({})", inner);
+            rv = write!(f, " ({inner})");
         }
         rv
     }
@@ -587,24 +587,22 @@ mod tests {
         {
             match promote_current_thread_to_real_time(0, 44100) {
                 Ok(rt_prio_handle) => {
-                    demote_current_thread_from_real_time(rt_prio_handle).unwrap();
-                    assert!(true);
+                    let rv = demote_current_thread_from_real_time(rt_prio_handle);
+                    assert!(rv.is_ok());
                 }
                 Err(e) => {
-                    eprintln!("{}", e);
-                    assert!(false);
+                    panic!("{}", e);
                 }
             }
         }
         {
             match promote_current_thread_to_real_time(512, 44100) {
                 Ok(rt_prio_handle) => {
-                    demote_current_thread_from_real_time(rt_prio_handle).unwrap();
-                    assert!(true);
+                    let rv = demote_current_thread_from_real_time(rt_prio_handle);
+                    assert!(rv.is_ok());
                 }
                 Err(e) => {
-                    eprintln!("{}", e);
-                    assert!(false);
+                    panic!("{}", e);
                 }
             }
         }
@@ -612,12 +610,11 @@ mod tests {
             // Try larger values to test https://github.com/mozilla/audio_thread_priority/pull/23
             match promote_current_thread_to_real_time(0, 192000) {
                 Ok(rt_prio_handle) => {
-                    demote_current_thread_from_real_time(rt_prio_handle).unwrap();
-                    assert!(true);
+                    let rv = demote_current_thread_from_real_time(rt_prio_handle);
+                    assert!(rv.is_ok());
                 }
                 Err(e) => {
-                    eprintln!("{}", e);
-                    assert!(false);
+                    panic!("{}", e);
                 }
             }
         }
@@ -625,23 +622,19 @@ mod tests {
             // Try larger values to test https://github.com/mozilla/audio_thread_priority/pull/23
             match promote_current_thread_to_real_time(8192, 48000) {
                 Ok(rt_prio_handle) => {
-                    demote_current_thread_from_real_time(rt_prio_handle).unwrap();
-                    assert!(true);
+                    let rv = demote_current_thread_from_real_time(rt_prio_handle);
+                    assert!(rv.is_ok());
                 }
                 Err(e) => {
-                    eprintln!("{}", e);
-                    assert!(false);
+                    panic!("{}", e);
                 }
             }
         }
         {
             match promote_current_thread_to_real_time(512, 44100) {
-                Ok(_) => {
-                    assert!(true);
-                }
+                Ok(_) => {}
                 Err(e) => {
-                    eprintln!("{}", e);
-                    assert!(false);
+                    panic!("{}", e);
                 }
             }
             // automatically deallocated, but not demoted until the thread exits.
@@ -666,12 +659,9 @@ mod tests {
                 {
                     let info = get_current_thread_info().unwrap();
                     match promote_thread_to_real_time(info, 512, 44100) {
-                        Ok(_) => {
-                            assert!(true);
-                        }
+                        Ok(_) => { }
                         Err(e) => {
-                            eprintln!("{}", e);
-                            assert!(false);
+                          panic!("{}", e);
                         }
                     }
                 }
@@ -702,12 +692,10 @@ mod tests {
                                 match promote_thread_to_real_time(info, 0, 44100) {
                                     Ok(_) => {
                                         eprintln!("thread promotion in the child from the parent succeeded");
-                                        assert!(true);
                                     }
-                                    Err(_) => {
-                                        eprintln!("promotion Err");
+                                    Err(e) => {
                                         kill(child, SIGKILL).expect("Could not kill the child?");
-                                        assert!(false);
+                                        panic!("{}", e);
                                     }
                                 }
                             }
diff --git a/src/rt_linux.rs b/src/rt_linux.rs
index 100b9e6..1eabe29 100644
--- a/src/rt_linux.rs
+++ b/src/rt_linux.rs
@@ -80,8 +80,7 @@ fn item_as_i64(i: MessageItem) -> Result<i64, AudioThreadPriorityError> {
         MessageItem::Int32(i) => Ok(i as i64),
         MessageItem::Int64(i) => Ok(i),
         _ => Err(AudioThreadPriorityError::new(&format!(
-            "Property is not integer ({:?})",
-            i
+            "Property is not integer ({i:?})"
         ))),
     }
 }
diff --git a/src/rt_mach.rs b/src/rt_mach.rs
index 3e1d57b..07822d4 100644
--- a/src/rt_mach.rs
+++ b/src/rt_mach.rs
@@ -155,7 +155,7 @@ pub fn promote_current_thread_to_real_time_internal(
             ));
         }
 
-        info!("thread {} bumped to real time priority.", tid);
+        info!("thread {tid} bumped to real time priority.");
     }
 
     Ok(rt_priority_handle)