go-build-before-race-test

Detects broad go build ./... steps that run before broad race-enabled Go tests.

This rule looks for:

• go build ./...
• followed later by go test -race ./...

Why it matters:

• Race-enabled tests rebuild packages with race instrumentation.
• A prior broad non-race build is much less likely to warm the useful build cache for the race test path.
• If the build has no separate output or validation purpose, it can be redundant work.

What to do:

• Remove or narrow the broad go build ./... before the race test.
• Keep it only when the job needs a separate compile check, binary-size check, or build artifact.
• Compare job runtime with and without the prior broad build step.