Resolve compiler warnings

Change-Id: I73c560b90ce4318d3aeb37f3dc336141dfef0e94

solana/modules/token_bridge/program/src/api/create_wrapped.rs

@@ -116,7 +116,7 @@ pub fn create_wrapped(
 
     // Create mint account
     accs.mint
-        .create(&((&*accs).into()), ctx, accs.payer.key, Exempt);
+        .create(&((&*accs).into()), ctx, accs.payer.key, Exempt)?;
 
     // Initialize mint
     let init_ix = spl_token::instruction::initialize_mint(
@@ -130,7 +130,7 @@ pub fn create_wrapped(
 
     // Create meta account
     accs.meta
-        .create(&((&*accs).into()), ctx, accs.payer.key, Exempt);
+        .create(&((&*accs).into()), ctx, accs.payer.key, Exempt)?;
 
     // Initialize spl meta
     accs.spl_metadata.verify_derivation(

solana/modules/token_bridge/program/src/api/governance.rs

@@ -101,8 +101,8 @@ pub fn upgrade_contract(
     accs: &mut UpgradeContract,
     _data: UpgradeContractData,
 ) -> Result<()> {
-    verify_governance(&accs.vaa);
-    accs.vaa.verify(&ctx.program_id)?;
+    verify_governance(&accs.vaa)?;
+    accs.vaa.verify(ctx.program_id)?;
 
     accs.vaa.claim(ctx, accs.payer.key)?;
 
@@ -158,8 +158,8 @@ pub fn register_chain(
         .verify_derivation(ctx.program_id, &derivation_data)?;
 
     // Claim VAA
-    verify_governance(&accs.vaa);
-    accs.vaa.verify(&ctx.program_id)?;
+    verify_governance(&accs.vaa)?;
+    accs.vaa.verify(ctx.program_id)?;
     accs.vaa.claim(ctx, accs.payer.key)?;
 
     if accs.vaa.chain == CHAIN_ID_SOLANA {
@@ -168,7 +168,7 @@ pub fn register_chain(
 
     // Create endpoint
     accs.endpoint
-        .create(&((&*accs).into()), ctx, accs.payer.key, Exempt);
+        .create(&((&*accs).into()), ctx, accs.payer.key, Exempt)?;
 
     accs.endpoint.chain = accs.vaa.chain;
     accs.endpoint.contract = accs.vaa.endpoint_address;

solana/modules/token_bridge/program/src/lib.rs

@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-#![allow(warnings)]
+#![deny(unused_must_use)]
 
 // #![cfg(all(target_arch = "bpf", not(feature = "no-entrypoint")))]
 

solana/modules/token_bridge/program/src/messages.rs

@@ -190,13 +190,13 @@ impl SerializePayload for PayloadAssetMeta {
         for i in 0..self.symbol.len() {
             symbol[i] = self.symbol.as_bytes()[i];
         }
-        writer.write(&symbol);
+        writer.write(&symbol)?;
 
         let mut name: [u8; 32] = [0; 32];
         for i in 0..self.name.len() {
             name[i] = self.name.as_bytes()[i];
         }
-        writer.write(&name);
+        writer.write(&name)?;
 
         Ok(())
     }
@@ -246,7 +246,7 @@ where
     Self: SerializeGovernancePayload,
 {
     fn serialize<W: Write>(&self, writer: &mut W) -> Result<(), SolitaireError> {
-        self.write_governance_header(writer);
+        self.write_governance_header(writer)?;
         // Payload ID
         writer.write_u16::<BigEndian>(self.chain)?;
         writer.write(&self.endpoint_address[..])?;
@@ -263,7 +263,7 @@ pub struct GovernancePayloadUpgrade {
 
 impl SerializePayload for GovernancePayloadUpgrade {
     fn serialize<W: Write>(&self, v: &mut W) -> std::result::Result<(), SolitaireError> {
-        self.write_governance_header(v);
+        self.write_governance_header(v)?;
         v.write(&self.new_contract.to_bytes())?;
         Ok(())
     }

solana/solitaire/program/src/macros.rs

@@ -136,7 +136,7 @@ macro_rules! pack_type {
             fn serialize<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
                 let mut data = [0u8; <$embed as solana_program::program_pack::Pack>::LEN];
                 solana_program::program_pack::Pack::pack_into_slice(&self.0, &mut data);
-                writer.write(&data);
+                writer.write(&data)?;
 
                 Ok(())
             }