updated the tool to use rayon and have output capabilities

target/release/.fingerprint/httparse-65081cf787e1ceb7/build-script-build-script-build

@@ -0,0 +1 @@
+5181702007d560f5

target/release/.fingerprint/httparse-65081cf787e1ceb7/build-script-build-script-build.json

@@ -0,0 +1 @@
+{"rustc":5391851738765093524,"features":"[\"default\", \"std\"]","declared_features":"[\"default\", \"std\"]","target":17883862002600103897,"profile":1369601567987815722,"path":17968085775360681226,"deps":[],"local":[{"CheckDepInfo":{"dep_info":"release/.fingerprint/httparse-65081cf787e1ceb7/dep-build-script-build-script-build","checksum":false}}],"rustflags":[],"config":8247474407144887393,"compile_kind":0}

target/release/.fingerprint/httparse-65081cf787e1ceb7/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.