updated the tool to use rayon and have output capabilities

target/debug/.fingerprint/h2-4290c0fce0d09370/invoked.timestamp

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+This file has an mtime of when this was started.

target/debug/.fingerprint/h2-4290c0fce0d09370/lib-h2

@@ -0,0 +1 @@
+5a1be51633f1577d

target/debug/.fingerprint/h2-4290c0fce0d09370/lib-h2.json

@@ -0,0 +1 @@
+{"rustc":5391851738765093524,"features":"[]","declared_features":"[\"stream\", \"unstable\"]","target":15216351499943135959,"profile":2241668132362809309,"path":13768874127846604451,"deps":[[1074848931188612602,"atomic_waker",false,18056016850935375292],[1345404220202658316,"fnv",false,8490913361093850439],[6955678925937229351,"slab",false,14051077108774158326],[8497458864474535856,"indexmap",false,6890945824664524404],[8858041990736880586,"tokio",false,14246740730727525667],[12588177665552295757,"futures_core",false,2334649494959562558],[14626413149905853098,"tracing",false,9990276772122074843],[15966749864389115859,"tokio_util",false,5731370885685627008],[16227728351758841112,"bytes",false,17479801066408341650],[17860019243264344128,"http",false,43340076530345039],[18223668634047601185,"futures_sink",false,968934328843470334]],"local":[{"CheckDepInfo":{"dep_info":"debug/.fingerprint/h2-4290c0fce0d09370/dep-lib-h2","checksum":false}}],"rustflags":[],"config":8247474407144887393,"compile_kind":0}