GitDocs
Build-system major drift

Go 1.24 build structured JSON output go build errors JSON -json flag

A CI annotator silently loses diagnostics when a wrapper starts emitting structured build output.

Go 1.24GoBuild-system major driftgo124

Agent Quick Fix

Repair against the current Go 1.24 contract, then keep the change narrow and source-backed.

Product: Go 1.24
Current-contract area: Automation parses human `go build` errors after `-json` adoption
Likely root cause: A CI annotator silently loses diagnostics when a wrapper starts emitting structured build output.
Repair direction: Verifier checks explicit modern configuration and supported daemon/toolchain separation.

Symptom

A CI annotator silently loses diagnostics when a wrapper starts emitting structured build output.

Why This Happens

Build scripts can be syntactically plausible while the current build-system major removes implicit artifacts/APIs or raises its daemon runtime floor.

Common Wrong Fixes

  • Changing local code without checking the current external contract.
  • Retrying the same install, build, or API call with no version/source change.
  • Applying a broad unsafe bypass when a narrow compatibility fix is available.

Codex Search Keywords

These are the search terms observed in a neutral Codex validation run for this failure shape.

Go 1.24 build structured JSON output go build errors JSON -json flag
site:go.dev/doc/go1.24 go build json output
"go build" "-json" "Go 1.24"
Go 1.24 test2json build errors JSON
site:tip.golang.org/doc/go1.24 "json" "go test"
https://go.dev/doc/go1.24
"go help buildjson" "Action" "build-output"
site:pkg.go.dev/cmd/go "buildjson"
"build-output" "go" "JSON"
https://go.dev/src/cmd/go/internal/work/buildjson.go
go.dev src cmd go internal work buildjson go
https://raw.githubusercontent.com/golang/go/master/src/cmd/go/internal/work/buildjson.go
github golang go buildjson.go cmd go internal work
"gotestjsonbuildtext" "build-output"
https://go.dev/src/cmd/go/internal/work/build.go
'HelpBuildjson' in https://go.dev/src/cmd/go/internal/work/build.go
https://go.dev/src/cmd/go/internal/work/buildjson.go?m=text

Source Trail

GitHub source file/reference: