Initial version of the marshal fuzzer

[dnkolegov-ar]

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Status	Name	Latest Commit	Updated (UTC)
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[github-actions]

Benchmark results

Tip

✅ PASSED: No benchmark exceeded the regression threshold.

Benchmark comparison table

Benchmark	Baseline (main)	Current	Delta	Threshold	Status
qmdb::merkleize/variant=any::unordered::fixed::mmr keys=10000 ch=false sync=false	1.575 ms	1.584 ms	+0.60%	10.00%	✅ PASS
qmdb::merkleize/variant=current::ordered::fixed::mmb chunk=256 keys=10000 ch=true sync=false	3.058 ms	3.109 ms	+1.67%	10.00%	✅ PASS

Baseline commit(s): 325c42c643b8

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 2ddc2d7. Configure here.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (fuzzing@5fc2f99). Learn more about missing BASE report.

@@            Coverage Diff             @@
##             fuzzing    #3861   +/-   ##
==========================================
  Coverage           ?   95.76%           
==========================================
  Files              ?      486           
  Lines              ?   200680           
  Branches           ?     4858           
==========================================
  Hits               ?   192183           
  Misses             ?     6864           
  Partials           ?     1633           

Files with missing lines	Coverage Δ
consensus/src/marshal/mocks/verifying.rs	80.00% <100.00%> (ø)
consensus/src/marshal/mod.rs	54.54% <ø> (ø)

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