diff --git a/Cargo.toml b/Cargo.toml
index 4d366ec19cf2..edc82cbcd446 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -171,6 +171,7 @@ rustdoc.all = "warn"
 branches_sharing_code = "warn"
 clear_with_drain = "warn"
 cloned_instead_of_copied = "warn"
+collection_is_never_read = "warn"
 derive_partial_eq_without_eq = "warn"
 doc_markdown = "warn"
 empty_line_after_doc_comments = "warn"
@@ -231,7 +232,6 @@ zero_sized_map_values = "warn"
 # Explicitly listing should make it easier to fix in the future.
 as_ptr_cast_mut = "allow"
 cognitive_complexity = "allow"
-collection_is_never_read = "allow"
 debug_assert_with_mut_call = "allow"
 fallible_impl_from = "allow"
 future_not_send = "allow"
diff --git a/crates/chainspec/src/spec.rs b/crates/chainspec/src/spec.rs
index 3135db04b491..67506162d435 100644
--- a/crates/chainspec/src/spec.rs
+++ b/crates/chainspec/src/spec.rs
@@ -695,7 +695,7 @@ impl From<Genesis> for ChainSpec {
             chain: genesis.config.chain_id.into(),
             genesis,
             genesis_hash: None,
-            hardforks: ChainHardforks::new(hardforks),
+            hardforks: ChainHardforks::new(ordered_hardforks),
             paris_block_and_final_difficulty,
             deposit_contract,
             #[cfg(feature = "optimism")]
diff --git a/crates/rpc/rpc-testing-util/src/trace.rs b/crates/rpc/rpc-testing-util/src/trace.rs
index db8933c0ad9c..862ecb432392 100644
--- a/crates/rpc/rpc-testing-util/src/trace.rs
+++ b/crates/rpc/rpc-testing-util/src/trace.rs
@@ -545,7 +545,6 @@ mod tests {
         let mut stream = client.replay_transactions(transactions, trace_types);
         let mut successes = 0;
         let mut failures = 0;
-        let mut all_results = Vec::new();
 
         assert_is_stream(&stream);
 
@@ -554,12 +553,10 @@ mod tests {
                 Ok((trace_result, tx_hash)) => {
                     println!("Success for tx_hash {tx_hash:?}: {trace_result:?}");
                     successes += 1;
-                    all_results.push(Ok((trace_result, tx_hash)));
                 }
                 Err((error, tx_hash)) => {
                     println!("Error for tx_hash {tx_hash:?}: {error:?}");
                     failures += 1;
-                    all_results.push(Err((error, tx_hash)));
                 }
             }
         }
@@ -656,7 +653,6 @@ mod tests {
         let mut stream = client.trace_call_stream(trace_call_request);
         let mut successes = 0;
         let mut failures = 0;
-        let mut all_results = Vec::new();
 
         assert_is_stream(&stream);
 
@@ -665,12 +661,10 @@ mod tests {
                 Ok(trace_result) => {
                     println!("Success: {trace_result:?}");
                     successes += 1;
-                    all_results.push(Ok(trace_result));
                 }
                 Err((error, request)) => {
                     println!("Error for request {request:?}: {error:?}");
                     failures += 1;
-                    all_results.push(Err((error, request)));
                 }
             }
         }