message: chore: ignore spin warning
  chore: set deny warning on audit
diff: @@ -117,7 +117,8 @@ clippy: setup-ckb-test ## Run linter to examine Rust source codes.
  .PHONY: security-audit
  security-audit: ## Use cargo-audit to audit Cargo.lock for crates with security vulnerabilities.
  - cargo audit
  + # https://rustsec.org/advisories/RUSTSEC-2019-0031: spin is no longer actively maintained, it's not a problem
  + cargo audit --ignore RUSTSEC-2019-0031 --deny-warnings
  # expecting to see "Success No vulnerable packages found"
  .PHONY: bench-test
  