diff --git a/rust/fastsim-cli/tests/integration-tests.rs b/rust/fastsim-cli/tests/integration-tests.rs
index 30675062..6e7b5a53 100644
--- a/rust/fastsim-cli/tests/integration-tests.rs
+++ b/rust/fastsim-cli/tests/integration-tests.rs
@@ -32,7 +32,7 @@ fn test_that_cli_app_produces_result() {
 
 #[test]
 fn test_that_adopt_hd_option_works_as_expected() {
-    let expected_results = vec![
+    let expected_results = [
         ("adoptstring.json", "0.245"),  // 0.245 kWh/mile
         ("adoptstring2.json", "7.906"), // 7.906 mpgge
         ("adoptstring3.json", "6.882"), // 6.882 mpgge
diff --git a/rust/fastsim-core/src/cycle.rs b/rust/fastsim-core/src/cycle.rs
index ab8175b3..821715e5 100644
--- a/rust/fastsim-core/src/cycle.rs
+++ b/rust/fastsim-core/src/cycle.rs
@@ -497,22 +497,22 @@ impl RustCycleCache {
 
     #[staticmethod]
     pub fn from_dict(dict: &PyDict) -> anyhow::Result<Self> {
-        let time_s = Array::from_vec(PyAny::get_item(&dict, "time_s")?.extract()?);
+        let time_s = Array::from_vec(PyAny::get_item(dict, "time_s")?.extract()?);
         let cyc_len = time_s.len();
         Ok(Self {
             time_s,
-            mps: Array::from_vec(PyAny::get_item(&dict, "mps")?.extract()?),
-            grade: if let Ok(value) = PyAny::get_item(&dict, "grade") {
+            mps: Array::from_vec(PyAny::get_item(dict, "mps")?.extract()?),
+            grade: if let Ok(value) = PyAny::get_item(dict, "grade") {
                 Array::from_vec(value.extract()?)
             } else {
                 Array::default(cyc_len)
             },
-            road_type: if let Ok(value) = PyAny::get_item(&dict, "road_type") {
+            road_type: if let Ok(value) = PyAny::get_item(dict, "road_type") {
                 Array::from_vec(value.extract()?)
             } else {
                 Array::default(cyc_len)
             },
-            name: PyAny::get_item(&dict, "name").and_then(String::extract).unwrap_or_default(),
+            name: PyAny::get_item(dict, "name").and_then(String::extract).unwrap_or_default(),
             orphaned: false,
         })
     }
@@ -737,13 +737,13 @@ impl TryFrom<HashMap<String, Vec<f64>>> for RustCycle {
     }
 }
 
-impl Into<HashMap<String, Vec<f64>>> for RustCycle {
-    fn into(self) -> HashMap<String, Vec<f64>> {
+impl From<RustCycle> for HashMap<String, Vec<f64>> {
+    fn from(cyc: RustCycle) -> Self {
         HashMap::from([
-            ("time_s".into(), self.time_s.to_vec()),
-            ("mps".into(), self.mps.to_vec()),
-            ("grade".into(), self.grade.to_vec()),
-            ("road_type".into(), self.road_type.to_vec()),
+            ("time_s".into(), cyc.time_s.to_vec()),
+            ("mps".into(), cyc.mps.to_vec()),
+            ("grade".into(), cyc.grade.to_vec()),
+            ("road_type".into(), cyc.road_type.to_vec()),
         ])
     }
 }
diff --git a/rust/fastsim-core/src/utils.rs b/rust/fastsim-core/src/utils.rs
index af3b376f..c69f95da 100644
--- a/rust/fastsim-core/src/utils.rs
+++ b/rust/fastsim-core/src/utils.rs
@@ -431,12 +431,11 @@ pub fn multilinear(point: &[f64], grid: &[Vec<f64>], values: &ArrayD<f64>) -> an
             Slice::from(lower..=lower + 1)
         })
         .to_owned();
-    let mut index_permutations = get_index_permutations(&interp_vals.shape());
+    let mut index_permutations = get_index_permutations(interp_vals.shape());
     // This loop interpolates in each dimension sequentially
     // each outer loop iteration the dimensionality reduces by 1
     // `interp_vals` ends up as a 0-dimensional array containing only the final interpolated value
-    for dim in 0..n {
-        let diff = interp_diffs[dim];
+    for (dim, diff) in interp_diffs.iter().enumerate() {
         let next_dim = n - 1 - dim;
         let next_shape = vec![2; next_dim];
         // Indeces used for saving results of this dimensions interpolation results
diff --git a/rust/fastsim-core/src/vehicle_utils.rs b/rust/fastsim-core/src/vehicle_utils.rs
index fe8e7887..a08ae471 100644
--- a/rust/fastsim-core/src/vehicle_utils.rs
+++ b/rust/fastsim-core/src/vehicle_utils.rs
@@ -1330,7 +1330,7 @@ fn read_fuelecon_gov_emissions_to_hashmap(
             if let Some(item) = ok_result {
                 if let Some(id_str) = item.get("id") {
                     if let Ok(id) = str::parse::<u32>(id_str) {
-                        output.entry(id).or_insert_with(Vec::new);
+                        output.entry(id).or_default();
                         if let Some(ers) = output.get_mut(&id) {
                             let emiss = EmissionsInfoFE {
                                 efid: item.get("efid").unwrap().clone(),
@@ -1463,7 +1463,7 @@ pub fn get_fastsim_data_dir() -> Option<PathBuf> {
 pub fn extract_zip(filepath: &Path, dest_dir: &Path) -> Result<(), anyhow::Error> {
     let f = File::open(filepath)?;
     let mut zip = zip::ZipArchive::new(f)?;
-    zip.extract(&dest_dir)?;
+    zip.extract(dest_dir)?;
     Ok(())
 }
 
@@ -1489,7 +1489,7 @@ pub fn download_file_from_url(url: &str, file_path: &Path) -> Result<(), anyhow:
         return Err(anyhow!("No data available from {url}"));
     }
     {
-        let mut file = match File::create(&file_path) {
+        let mut file = match File::create(file_path) {
             Err(why) => {
                 return Err(anyhow!(
                     "couldn't open {}: {}",