diff --git a/crates/cli/src/command.rs b/crates/cli/src/command.rs
index ef73cb949..2fc6059e9 100644
--- a/crates/cli/src/command.rs
+++ b/crates/cli/src/command.rs
@@ -160,7 +160,7 @@ impl SetupArg {
         let mut monitor = TableMonitor::new(
             self.k,
             env_builder.create_flush_strategy(),
-            Box::new(InMemoryBackend::default()),
+            Box::<InMemoryBackend>::default(),
             &self.phantom_functions,
             &env,
         );
diff --git a/crates/cli/src/file_backend.rs b/crates/cli/src/file_backend.rs
index ffc80e2c2..00ff1d64e 100644
--- a/crates/cli/src/file_backend.rs
+++ b/crates/cli/src/file_backend.rs
@@ -17,12 +17,12 @@ struct SlicePath {
     external_host_call_table: PathBuf,
 }
 
-impl Into<Slice> for &SlicePath {
-    fn into(self) -> Slice {
+impl From<&SlicePath> for Slice {
+    fn from(val: &SlicePath) -> Self {
         Slice {
-            etable: EventTable::read(&self.event_table).unwrap(),
-            frame_table: FrameTable::read(&self.frame_table).unwrap(),
-            external_host_call_table: ExternalHostCallTable::read(&self.external_host_call_table)
+            etable: EventTable::read(&val.event_table).unwrap(),
+            frame_table: FrameTable::read(&val.frame_table).unwrap(),
+            external_host_call_table: ExternalHostCallTable::read(&val.external_host_call_table)
                 .unwrap(),
         }
     }
@@ -113,7 +113,7 @@ impl SliceBackend for FileBackend {
 
         if let Some(slice) = self.peeked.as_ref() {
             f((offset, slice));
-            offset = offset + 1;
+            offset += 1;
         }
 
         self.slices.iter().enumerate().for_each(|(index, slice)| {
diff --git a/crates/cli/src/main.rs b/crates/cli/src/main.rs
index 62b769ed8..95d2f72fe 100644
--- a/crates/cli/src/main.rs
+++ b/crates/cli/src/main.rs
@@ -106,7 +106,7 @@ fn main() -> Result<()> {
             let trace_backend: Box<dyn SliceBackend> = if arg.file_backend {
                 Box::new(FileBackend::new(cli.name, trace_dir))
             } else {
-                Box::new(InMemoryBackend::default())
+                Box::<InMemoryBackend>::default()
             };
 
             let env_builder: Box<dyn HostEnvBuilder> = match config.host_mode {