diff --git a/binaries/cuprated/src/rpc/handler.rs b/binaries/cuprated/src/rpc/handler.rs
index 5db473d..f3eb831 100644
--- a/binaries/cuprated/src/rpc/handler.rs
+++ b/binaries/cuprated/src/rpc/handler.rs
@@ -35,7 +35,10 @@ pub enum BlockchainManagerRequest {
     Pruned,
 
     /// Relay a block to the network.
-    RelayBlock(Block),
+    RelayBlock(
+        /// This is [`Box`]ed due to `clippy::large_enum_variant`.
+        Box<Block>,
+    ),
 
     /// Is the blockchain in the middle of syncing?
     ///
diff --git a/binaries/cuprated/src/rpc/json.rs b/binaries/cuprated/src/rpc/json.rs
index 5cf7c14..0bd4125 100644
--- a/binaries/cuprated/src/rpc/json.rs
+++ b/binaries/cuprated/src/rpc/json.rs
@@ -166,7 +166,7 @@ async fn submit_block(
     let block_id = hex::encode(block.hash());
 
     // Attempt to relay the block.
-    blockchain_manager::relay_block(&mut state.blockchain_manager, block).await?;
+    blockchain_manager::relay_block(&mut state.blockchain_manager, Box::new(block)).await?;
 
     Ok(SubmitBlockResponse {
         base: ResponseBase::OK,
@@ -1059,7 +1059,9 @@ fn add_aux_pow_inner(
         let mut slots: Box<[u32]> = vec![u32::MAX; aux_pow_len].into_boxed_slice();
         let mut slot_seen: Box<[bool]> = vec![false; aux_pow_len].into_boxed_slice();
 
-        for nonce in 0..u32::MAX {
+        const MAX_NONCE: u32 = 65535;
+
+        for nonce in 0..=MAX_NONCE {
             for i in &mut slots {
                 let slot_u32: u32 = todo!("const uint32_t slot = cryptonote::get_aux_slot(aux_pow[idx].first, nonce, aux_pow.size());");
                 let slot = u32_to_usize(slot_u32);
diff --git a/binaries/cuprated/src/rpc/request/blockchain_manager.rs b/binaries/cuprated/src/rpc/request/blockchain_manager.rs
index ed72284..fe3f557 100644
--- a/binaries/cuprated/src/rpc/request/blockchain_manager.rs
+++ b/binaries/cuprated/src/rpc/request/blockchain_manager.rs
@@ -67,7 +67,7 @@ pub(crate) async fn pruned(
 /// [`BlockchainManagerRequest::RelayBlock`]
 pub(crate) async fn relay_block(
     blockchain_manager: &mut BlockchainManagerHandle,
-    block: Block,
+    block: Box<Block>,
 ) -> Result<(), Error> {
     let BlockchainManagerResponse::Ok = blockchain_manager
         .ready()