chore: reduce unnecessary collected fuzz state (#7305)

crates/evm/fuzz/src/strategies/state.rs

@@ -14,7 +14,7 @@ use revm::{
  interpreter::opcode::{self, spec_opcode_gas},
  primitives::SpecId,
 };
-use std::{fmt, io::Write, str::FromStr, sync::Arc};
+use std::{fmt, str::FromStr, sync::Arc};
 
 /// A set of arbitrary 32 byte data from the VM used to generate values for the strategy.
 ///
@@ -185,19 +185,20 @@ pub fn collect_state_from_call(
  } else {
  return;
  }
+ }
 
-  // Insert log topics and data
-  for log in logs {
-  log.data.topics().iter().for_each(|topic| {
-  state.values_mut().insert(topic.0);
-  });
-  log.data.data.chunks(32).for_each(|chunk| {
-  let mut buffer: [u8; 32] = [0; 32];
-  let _ = (&mut buffer[..])
-  .write(chunk)
-  .expect("log data chunk was larger than 32 bytes");
-  state.values_mut().insert(buffer);
- });
+ // Insert log topics and data.
+ for log in logs {
+ for topic in log.topics() {
+ state.values_mut().insert(topic.0);
+ }
+ let chunks = log.data.data.chunks_exact(32);
+ let rem = chunks.remainder();
+ for chunk in chunks {
+ state.values_mut().insert(chunk.try_into().unwrap());
+ }
+ if !rem.is_empty() {
+ state.values_mut().insert(B256::right_padding_from(rem).0);
  }
  }
 }