updated the tool to use rayon and have output capabilities

target/debug/.fingerprint/h2-c877f83e67e685c8/invoked.timestamp

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

target/debug/.fingerprint/h2-c877f83e67e685c8/lib-h2

@@ -0,0 +1 @@
+c7c1566befcd7323

target/debug/.fingerprint/h2-c877f83e67e685c8/lib-h2.json

@@ -0,0 +1 @@
+{"rustc":5391851738765093524,"features":"[]","declared_features":"[\"stream\", \"unstable\"]","target":15216351499943135959,"profile":15657897354478470176,"path":13768874127846604451,"deps":[[1074848931188612602,"atomic_waker",false,2854318254935282004],[1345404220202658316,"fnv",false,14069529475866652457],[6955678925937229351,"slab",false,8210376832860033516],[8497458864474535856,"indexmap",false,14875328185485680600],[8858041990736880586,"tokio",false,133625032368615005],[12588177665552295757,"futures_core",false,7084373664529534624],[14626413149905853098,"tracing",false,3147499280168238014],[15966749864389115859,"tokio_util",false,7054459093341128821],[16227728351758841112,"bytes",false,7057593703305394591],[17860019243264344128,"http",false,4124190122593160142],[18223668634047601185,"futures_sink",false,4233857435349537999]],"local":[{"CheckDepInfo":{"dep_info":"debug/.fingerprint/h2-c877f83e67e685c8/dep-lib-h2","checksum":false}}],"rustflags":[],"config":8247474407144887393,"compile_kind":0}