message: Fix build part 2
diff: @@ -110,7 +110,7 @@ void ComputeAccessRecursive(std::vector<AccessPattern>* out, const stripe::proto
  Constraint con;
  con.lhs.resize(self.idx_count);
  bool exact = true;
  - for(size_t i = 0; i < pcon.lhs().size(); i++) {
  + for(size_t i = 0; i < size_t(pcon.lhs().size()); i++) {
  int64_t mul = pcon.lhs(i);
  const auto& info = self.indexes[block.idxs(i).name()];
  if (info.incomplete && mul != 0) {
  