diff --git a/narwhal/network/src/p2p.rs b/narwhal/network/src/p2p.rs
index 2bf2442b5962f..b7ff87d545bdb 100644
--- a/narwhal/network/src/p2p.rs
+++ b/narwhal/network/src/p2p.rs
@@ -6,7 +6,7 @@ use crate::{
     traits::{Lucky, ReliableNetwork, UnreliableNetwork},
     BoundedExecutor, CancelOnDropHandler, RetryConfig, MAX_TASK_CONCURRENCY,
 };
-use anemo::{Peer, PeerId, Response};
+use anemo::PeerId;
 use anyhow::format_err;
 use anyhow::Result;
 use async_trait::async_trait;
@@ -18,11 +18,10 @@ use tokio::{runtime::Handle, task::JoinHandle};
 use types::{
     Batch, BatchDigest, FetchCertificatesRequest, FetchCertificatesResponse,
     GetCertificatesRequest, GetCertificatesResponse, LatestHeaderRequest, LatestHeaderResponse,
-    PrimaryMessage, PrimaryToPrimaryClient, PrimaryToPrimaryClient, PrimaryToWorkerClient,
-    PrimaryToWorkerClient, RequestBatchRequest, WorkerBatchMessage, WorkerDeleteBatchesMessage,
-    WorkerOthersBatchMessage, WorkerOurBatchMessage, WorkerReconfigureMessage,
-    WorkerSynchronizeMessage, WorkerToPrimaryClient, WorkerToPrimaryClient, WorkerToWorkerClient,
-    WorkerToWorkerClient,
+    PrimaryMessage, PrimaryToPrimaryClient, PrimaryToWorkerClient, RequestBatchRequest,
+    WorkerBatchMessage, WorkerDeleteBatchesMessage, WorkerOthersBatchMessage,
+    WorkerOurBatchMessage, WorkerReconfigureMessage, WorkerSynchronizeMessage,
+    WorkerToPrimaryClient, WorkerToWorkerClient,
 };
 
 fn default_executor() -> BoundedExecutor {
diff --git a/narwhal/primary/src/core.rs b/narwhal/primary/src/core.rs
index 6ed8788ed9876..965ef1c186f8b 100644
--- a/narwhal/primary/src/core.rs
+++ b/narwhal/primary/src/core.rs
@@ -15,9 +15,7 @@ use crypto::{NetworkPublicKey, PublicKey, Signature};
 use fastcrypto::{hash::Hash as _, SignatureService};
 use futures::stream::FuturesUnordered;
 use futures::StreamExt;
-use network::{
-    CancelOnDropHandler, P2pNetwork, PrimaryToPrimaryRpc, ReliableNetwork, UnreliableNetwork,
-};
+use network::{CancelOnDropHandler, P2pNetwork, PrimaryToPrimaryRpc, ReliableNetwork};
 use std::time::Duration;
 use std::{
     collections::{HashMap, HashSet},
@@ -33,8 +31,8 @@ use types::{
     ensure,
     error::{DagError, DagError::StoreError, DagResult},
     metered_channel::{Receiver, Sender},
-    Certificate, Header, HeaderDigest, LatestHeaderRequest, PrimaryToPrimaryClient,
-    ReconfigureNotification, Round, RoundVoteDigestPair, Timestamp, Vote,
+    Certificate, Header, HeaderDigest, LatestHeaderRequest, ReconfigureNotification, Round,
+    RoundVoteDigestPair, Timestamp, Vote,
 };
 
 #[cfg(test)]
@@ -207,7 +205,7 @@ impl Core {
             });
         }
         let request_interval = Duration::from_secs(RECOVERY_REQUEST_TIMEOUT_SECS);
-        let interval = Box::pin(time::sleep(request_interval));
+        let mut interval = Box::pin(time::sleep(request_interval));
         loop {
             tokio::select! {
                 res = header_futures.next() => {
diff --git a/narwhal/primary/src/primary.rs b/narwhal/primary/src/primary.rs
index d958ff0953afc..38885bfadb055 100644
--- a/narwhal/primary/src/primary.rs
+++ b/narwhal/primary/src/primary.rs
@@ -56,10 +56,11 @@ use types::{
     FetchCertificatesResponse, GetCertificatesRequest, GetCertificatesResponse, Header,
     HeaderDigest, LatestHeaderRequest, LatestHeaderResponse, PayloadAvailabilityRequest,
     PayloadAvailabilityResponse, PrimaryToPrimary, PrimaryToPrimary, PrimaryToPrimary,
-    PrimaryToPrimaryServer, PrimaryToPrimaryServer, PrimaryToPrimaryServer,
-    ReconfigureNotification, Round, RoundVoteDigestPair, WorkerInfoResponse,
-    WorkerOthersBatchMessage, WorkerOurBatchMessage, WorkerToPrimary, WorkerToPrimary,
-    WorkerToPrimary, WorkerToPrimaryServer, WorkerToPrimaryServer, WorkerToPrimaryServer,
+    PrimaryToPrimary, PrimaryToPrimaryServer, PrimaryToPrimaryServer, PrimaryToPrimaryServer,
+    PrimaryToPrimaryServer, ReconfigureNotification, Round, RoundVoteDigestPair,
+    WorkerInfoResponse, WorkerOthersBatchMessage, WorkerOurBatchMessage, WorkerToPrimary,
+    WorkerToPrimary, WorkerToPrimary, WorkerToPrimary, WorkerToPrimaryServer,
+    WorkerToPrimaryServer, WorkerToPrimaryServer, WorkerToPrimaryServer,
 };
 
 #[cfg(any(test))]
diff --git a/narwhal/primary/src/proposer.rs b/narwhal/primary/src/proposer.rs
index 762011d575b39..b4eec0423a428 100644
--- a/narwhal/primary/src/proposer.rs
+++ b/narwhal/primary/src/proposer.rs
@@ -18,8 +18,7 @@ use tracing::{debug, info};
 use types::{
     error::{DagError, DagResult},
     metered_channel::{Receiver, Sender},
-    BatchDigest, Certificate, Header, PrimaryMessage, ReconfigureNotification, Round, Timestamp,
-    TimestampMs,
+    BatchDigest, Certificate, Header, ReconfigureNotification, Round, Timestamp, TimestampMs,
 };
 
 #[cfg(test)]
diff --git a/narwhal/primary/src/tests/certificate_waiter_tests.rs b/narwhal/primary/src/tests/certificate_waiter_tests.rs
index 9c1976eb42ddd..27c8029165bee 100644
--- a/narwhal/primary/src/tests/certificate_waiter_tests.rs
+++ b/narwhal/primary/src/tests/certificate_waiter_tests.rs
@@ -31,8 +31,8 @@ use types::{
     BatchDigest, Certificate, CertificateDigest, FetchCertificatesRequest,
     FetchCertificatesResponse, GetCertificatesRequest, GetCertificatesResponse, Header,
     HeaderDigest, LatestHeaderRequest, LatestHeaderResponse, Metadata, PayloadAvailabilityRequest,
-    PayloadAvailabilityResponse, PrimaryMessage, PrimaryToPrimary, PrimaryToPrimary,
-    PrimaryToPrimaryServer, PrimaryToPrimaryServer, ReconfigureNotification, Round,
+    PayloadAvailabilityResponse, PrimaryMessage, PrimaryToPrimary, PrimaryToPrimaryServer,
+    ReconfigureNotification, Round,
 };
 
 struct FetchCertificateProxy {
@@ -75,7 +75,7 @@ impl PrimaryToPrimary for FetchCertificateProxy {
         &self,
         _request: anemo::Request<LatestHeaderRequest>,
     ) -> Result<anemo::Response<LatestHeaderResponse>, anemo::rpc::Status> {
-        unimplemented!()
+        Ok(anemo::Response::new(LatestHeaderResponse { header: None }))
     }
 }
 
diff --git a/narwhal/primary/src/tests/proposer_tests.rs b/narwhal/primary/src/tests/proposer_tests.rs
index b049130d7d44c..2edf1b7362516 100644
--- a/narwhal/primary/src/tests/proposer_tests.rs
+++ b/narwhal/primary/src/tests/proposer_tests.rs
@@ -180,7 +180,6 @@ async fn equivocation_protection() {
 
     // Ensure the proposer makes a correct header from the provided payload.
     let header = rx_headers.recv().await.unwrap();
-    assert_eq!(header.round, 2);
     assert_eq!(header.payload.get(&digest), Some(&worker_id));
     assert!(header.verify(&committee, shared_worker_cache).is_ok());
 
diff --git a/narwhal/test-utils/src/lib.rs b/narwhal/test-utils/src/lib.rs
index c127a0f4c734a..9a1043980ada8 100644
--- a/narwhal/test-utils/src/lib.rs
+++ b/narwhal/test-utils/src/lib.rs
@@ -27,13 +27,11 @@ use tracing::info;
 use types::{
     Batch, BatchDigest, Certificate, CertificateDigest, ConsensusStore, FetchCertificatesRequest,
     FetchCertificatesResponse, GetCertificatesRequest, GetCertificatesResponse, Header,
-    HeaderBuilder, HeaderBuilder, LatestHeaderRequest, LatestHeaderResponse,
-    PayloadAvailabilityRequest, PayloadAvailabilityResponse, PrimaryMessage, PrimaryToPrimary,
-    PrimaryToPrimary, PrimaryToPrimaryServer, PrimaryToPrimaryServer, PrimaryToWorker,
-    PrimaryToWorker, PrimaryToWorkerServer, PrimaryToWorkerServer, RequestBatchRequest,
-    RequestBatchResponse, Round, SequenceNumber, Transaction, Vote, WorkerBatchMessage,
-    WorkerDeleteBatchesMessage, WorkerReconfigureMessage, WorkerSynchronizeMessage, WorkerToWorker,
-    WorkerToWorker, WorkerToWorkerServer, WorkerToWorkerServer,
+    HeaderBuilder, LatestHeaderRequest, LatestHeaderResponse, PayloadAvailabilityRequest,
+    PayloadAvailabilityResponse, PrimaryMessage, PrimaryToPrimary, PrimaryToPrimaryServer,
+    PrimaryToWorker, PrimaryToWorkerServer, RequestBatchRequest, RequestBatchResponse, Round,
+    SequenceNumber, Transaction, Vote, WorkerBatchMessage, WorkerDeleteBatchesMessage,
+    WorkerReconfigureMessage, WorkerSynchronizeMessage, WorkerToWorker, WorkerToWorkerServer,
 };
 
 pub mod cluster;
diff --git a/narwhal/types/build.rs b/narwhal/types/build.rs
index 824dab391c434..648fd343c8fdc 100644
--- a/narwhal/types/build.rs
+++ b/narwhal/types/build.rs
@@ -1,7 +1,6 @@
 // Copyright (c) Mysten Labs, Inc.
 // SPDX-License-Identifier: Apache-2.0
 
-use rustversion::{beta, nightly, stable};
 use std::{
     env,
     path::{Path, PathBuf},