add black box marker to hash benchmark

[jack60612]

No description provided.

[jack60612]

performance stayed the same.

[coveralls-official]

Pull Request Test Coverage Report for Build 10226110934

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 4 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.08%) to 94.075%

---

Files with Coverage Reduction	New Missed Lines	%
src/allocator.rs	4	98.11%

Totals
Change from base Build 9895604796:	-0.08%
Covered Lines:	5779
Relevant Lines:	6143

---

💛 - Coveralls

[arvidn]

@jack60612 cargo fmt is failing

[arvidn]

this is what I get on a Mac M1:

rust implementation:

sha256_hash/hash_benchmark
                        time:   [619.71 µs 621.33 µs 623.79 µs]

with openssl:

sha256_hash/hash_benchmark
                        time:   [310.09 µs 310.47 µs 310.92 µs]
                        change: [-50.029% -49.924% -49.824%] (p = 0.00 < 0.05)
                        Performance has improved.

[jack60612]

@jack60612 cargo fmt is failing

oh i missed this

[jack60612]

changed my config to auto run fmt

[arvidn]

there's still a clippy failure. the README.md has instructions on how to set up pre-commit