diff --git a/crates/trees/src/cascading/mod.rs b/crates/trees/src/cascading/mod.rs
index 9e36f4f..5852624 100644
--- a/crates/trees/src/cascading/mod.rs
+++ b/crates/trees/src/cascading/mod.rs
@@ -405,7 +405,7 @@ where
         for subtree_power in first_subtree_power..=last_subtree_power {
             // We have a special case for subtree_power = 0
             // because the subtree is completely empty.
-            // This represents the very borrow left of the tree.
+            // This represents the very bottom left of the tree.
             // parent_index represents the index of the parent node of the subtree.
             // It is the power of two on the left most branch of the tree.
             let parent_index = if subtree_power == 0 {
diff --git a/examples/abort/main.rs b/examples/abort/main.rs
index a8e2c56..09317b2 100644
--- a/examples/abort/main.rs
+++ b/examples/abort/main.rs
@@ -19,7 +19,9 @@ static INITIAL_LEAVES: usize = 10;
 /// is successful
 ///
 /// Run this binary with no arguments to run the tests
-fn main() -> Result<()> {
+/// `RUSTFLAGS="-C panic=abort" cargo run --example abort`
+#[tokio::main]
+async fn main() -> Result<()> {
     let args: Vec<String> = env::args().collect();
 
     // initialize
@@ -63,9 +65,7 @@ fn run_test(prefix: &str) -> Result<u32> {
         let stdout = String::from_utf8(output.stdout)?;
         print!("{}", stdout);
         let stderr = String::from_utf8(output.stderr)?;
-        if !stderr.is_empty() {
-            panic!("{}", stderr);
-        }
+        print!("{}", stderr);
 
         let output = std::process::Command::new(BIN_PATH)
             .arg(format!("{prefix}_restore"))
@@ -97,7 +97,7 @@ fn cascade_init() -> Result<()> {
         &leaves,
     );
 
-    let _handle = std::thread::spawn(move || {
+    let _handle = tokio::spawn(async move {
         for _ in 0..15 {
             tree.push(U256::from(2)).unwrap();
         }
@@ -107,7 +107,7 @@ fn cascade_init() -> Result<()> {
     let millis: u64 = rng.gen_range(0..50);
     std::thread::sleep(std::time::Duration::from_millis(millis));
 
-    Ok(())
+    panic!("");
 }
 
 fn cascade_restore() -> Result<()> {
@@ -145,7 +145,7 @@ fn lazy_init() -> Result<()> {
     let millis: u64 = rng.gen_range(0..50);
     std::thread::sleep(std::time::Duration::from_millis(millis));
 
-    Ok(())
+    panic!("");
 }
 
 fn lazy_restore() -> Result<()> {
diff --git a/src/util.rs b/src/util.rs
index 8078aa5..46afc6c 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -69,7 +69,7 @@ pub(crate) fn deserialize_bytes<'de, const N: usize, D: Deserializer<'de>>(
 ) -> Result<[u8; N], D::Error> {
     if deserializer.is_human_readable() {
         struct StrVisitor<const N: usize>;
-        impl<'de, const N: usize> Visitor<'de> for StrVisitor<N> {
+        impl<const N: usize> Visitor<'_> for StrVisitor<N> {
             type Value = [u8; N];
 
             fn expecting(&self, formatter: &mut Formatter) -> FmtResult {
@@ -86,7 +86,7 @@ pub(crate) fn deserialize_bytes<'de, const N: usize, D: Deserializer<'de>>(
         deserializer.deserialize_str(StrVisitor)
     } else {
         struct ByteVisitor<const N: usize>;
-        impl<'de, const N: usize> Visitor<'de> for ByteVisitor<N> {
+        impl<const N: usize> Visitor<'_> for ByteVisitor<N> {
             type Value = [u8; N];
 
             fn expecting(&self, formatter: &mut Formatter) -> FmtResult {