updated the tool to use rayon and have output capabilities

target/debug/.fingerprint/serde-8bc1ac4c345520f6/run-build-script-build-script-build

@@ -0,0 +1 @@
+45006a7e44061aec

target/debug/.fingerprint/serde-8bc1ac4c345520f6/run-build-script-build-script-build.json

@@ -0,0 +1 @@
+{"rustc":5391851738765093524,"features":"","declared_features":"","target":0,"profile":0,"path":0,"deps":[[17174345729924723953,"build_script_build",false,9275191190762711480]],"local":[{"RerunIfChanged":{"output":"debug/build/serde-8bc1ac4c345520f6/output","paths":["build.rs"]}}],"rustflags":[],"config":0,"compile_kind":0}