message: Correcting variable name from `block` to `block_header`
diff: @@ -450,7 +450,7 @@ impl reactor::Reactor for Reactor {
  effect_builder,
  maybe_latest_block_header
  .as_ref()
  - .map(|block| block.height() + 1)
  + .map(|block_header| block_header.height() + 1)
  .unwrap_or(0),
  chainspec_loader.chainspec().as_ref(),
  config.block_proposer,
  