Remove warnings

swap/src/alice.rs

@@ -423,7 +423,9 @@ where
                     )
                     .expect("sig_{a,b} to be valid signatures for tx_cancel");
 
-                bitcoin_wallet.broadcast_signed_transaction(tx_cancel).await;
+                bitcoin_wallet
+                    .broadcast_signed_transaction(tx_cancel)
+                    .await?;
             }
 
             simple_swap(

swap/src/bitcoin.rs

@@ -156,7 +156,7 @@ impl TransactionBlockHeight for Wallet {
 
 #[async_trait]
 impl GetRawTransaction for Wallet {
-    async fn get_raw_transaction(&self, txid: Txid) -> Option<Transaction> {
+    async fn get_raw_transaction(&self, _txid: Txid) -> Option<Transaction> {
         todo!()
     }
 }

swap/src/lib.rs

@@ -1,3 +1,5 @@
+#![allow(non_snake_case)]
+
 use serde::{Deserialize, Serialize};
 use std::fmt::{self, Display};