[WIP] investigating flaky tests

[mccutchen]

Just throwing some stuff at the wall to see what sticks, trying to dig into #72.

[github-actions]

🔥 Run benchmarks comparing b54f40e against main:

gh workflow run bench.yaml -f pr_number=75

Note: this comment will update with each new commit.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.14%. Comparing base (351f4c6) to head (b54f40e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #75      +/-   ##
==========================================
- Coverage   99.04%   98.14%   -0.91%     
==========================================
  Files           2        2              
  Lines         421      431      +10     
==========================================
+ Hits          417      423       +6     
- Misses          2        4       +2     
- Partials        2        4       +2     

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[mccutchen]

The tapped connection stuff added here identified the bug, which was fixed in #76.