Johnathan Corgan 0f27bdbd2c Give the UDP microbench a reason and record the retry asymmetry ...

The UDP recv microbenchmark carried a bare #[ignore] while its sibling in
the link module carries a self-describing one. Match it, so the reason
appears wherever the test is listed rather than only in the doc comment.

Record why [profile.ci] retries = 2 is not applied locally. The two gates
disagree on purpose: the hosted runner retries a flaky test twice, the
local sweep fails on the first failure. It exists for shared-runner packet
loss, a property of that environment rather than of the code, and applying
it locally would suppress a real local flake — a failure that only
reproduces under load is a robustness bug to fix, not to retry past.
Keeping the local sweep strict is what makes it the sharper gate. An
undocumented asymmetry is indistinguishable from an oversight, which is
why this is written down rather than left to be rediscovered.

The cost is stated rather than hidden: a test that fails once and passes
on retry is reported green with no separate signal, so a genuine
intermittent failure can be absorbed. If that starts mattering the fix is
to surface retried-but-passed tests, not to drop the retries.

Quartet clean: fmt, build --workspace, clippy --all-targets -D warnings,
and test --lib at 1376 passed / 0 failed / 7 ignored.

2026-07-23 13:48:11 +00:00

..

nextest.toml

Give the UDP microbench a reason and record the retry asymmetry

2026-07-23 13:48:11 +00:00