add retdata to effects; no idea if this will pass

fuzz/fixture/src/effects.rs

@@ -2,7 +2,10 @@
 
 use {
     super::proto::{AcctState as ProtoAccount, InstrEffects as ProtoEffects},
-    solana_sdk::{account::AccountSharedData, keccak::Hasher, pubkey::Pubkey},
+    solana_sdk::{
+        account::AccountSharedData, keccak::Hasher, pubkey::Pubkey,
+        transaction_context::TransactionReturnData,
+    },
 };
 
 /// Represents the effects of a single instruction.
@@ -14,6 +17,7 @@ pub struct Effects {
     pub execution_time: u64,
     // Program return code. Zero is success, errors are non-zero.
     pub program_result: u32,
+    pub return_data: Option<TransactionReturnData>,
     /// Resulting accounts with state, to be checked post-simulation.
     pub resulting_accounts: Vec<(Pubkey, AccountSharedData)>,
 }
@@ -34,6 +38,7 @@ impl From<ProtoEffects> for Effects {
             compute_units_consumed,
             execution_time,
             program_result,
+            return_data: None, // TODO
             resulting_accounts,
         }
     }
@@ -45,6 +50,7 @@ impl From<Effects> for ProtoEffects {
             compute_units_consumed,
             execution_time,
             program_result,
+            return_data: _, // TODO
             resulting_accounts,
         } = value;
 

harness/src/fuzz/mollusk.rs

@@ -56,6 +56,7 @@ impl From<&InstructionResult> for FuzzEffects {
     fn from(input: &InstructionResult) -> Self {
         let compute_units_consumed = input.compute_units_consumed;
         let execution_time = input.execution_time;
+        let return_data = input.return_data.clone();
 
         let program_result = match &input.program_result {
             ProgramResult::Success => 0,
@@ -69,6 +70,7 @@ impl From<&InstructionResult> for FuzzEffects {
             compute_units_consumed,
             execution_time,
             program_result,
+            return_data,
             resulting_accounts,
         }
     }