return "", &fs.PathError{Op: "parse", Path: name, Err: errBuildIDMalformed}
	}

	off := int64(8)
	for {
		if _, err := f.Seek(off, io.SeekStart); err != nil {
			return "", err
		}

		// TODO(iant): Make a debug/ar package, and use it
		// here and in cmd/link.
		var hdr [60]byte
		if _, err := io.ReadFull(f, hdr[:]); err != nil {
			if err == io.EOF {
				// No more entries, no build ID.
				return "", nil

- [`KT-65704`](https://youtrack.jetbrains.com/issue/KT-65704) K2: `computeCommonSuperType` of flexible type with recursive captured type argument produces giant multi-level-deep type
- [`KT-65410`](https://youtrack.jetbrains.com/issue/KT-65410) K2: ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED  for 'removeAt' in KJK hierarchy

		// libopcodes uses the more regular expected encoding).
		// TODO(rsc): Test to ensure Intel manuals are correct and report to libopcodes maintainers?
		// NOTE: iant thinks this is deliberate, but we can't find the history.
		_, reg1 := inst.Args[0].(Reg)
		_, reg2 := inst.Args[1].(Reg)
		if reg1 && reg2 && (inst.Opcode>>24 == 0xDC || inst.Opcode>>24 == 0xDE) {
			switch inst.Op {

				cancel()
				<-c.Done()
			},
			limit:      8,
			gccgoLimit: 25,
		},
	} {
		limit := test.limit
		if runtime.Compiler == "gccgo" {
			// gccgo does not yet do escape analysis.
			// TODO(iant): Remove this when gccgo does do escape analysis.
			limit = test.gccgoLimit
		}
		numRuns := 100
		if testing.Short() {
			numRuns = 10
		}
		if n := testing.AllocsPerRun(numRuns, test.f); n > limit {

// for context.DeadlineExceeded. See mapErr.
// It is also used when Dialer.Deadline is exceeded.
// error.Is(errTimeout, context.DeadlineExceeded) returns true.
//
// TODO(iant): We could consider changing this to os.ErrDeadlineExceeded
// in the future, if we make
//
//	errors.Is(os.ErrDeadlineExceeded, context.DeadlineExceeded)
//
// return true.
var errTimeout error = &timeoutError{}

	t.Helper()

	f, err := os.Open(arname)
	if err != nil {
		t.Errorf("archive %s does not exist: %v", arname, err)
		return
	}
	defer f.Close()

	// TODO(iant): put these in a shared package?  But where?
	const (
		magic = "!<arch>\n"
		fmag  = "`\n"

		namelen = 16
		datelen = 12
		uidlen  = 6
		gidlen  = 6
		modelen = 8
		sizelen = 10

		})
	// We don't want the following line, because it
	// slows down all.bash (by 10 seconds on my laptop).
	// The race builder should catch any error here, but doesn't.
	// TODO(iant): Figure out how to catch this.
	// t.registerTest(hdr, &goTest{variant: "race", race: true, runTests: "TestParallelTest", pkg: "cmd/go"})
	if t.cgoEnabled {
		// Building cmd/cgo/internal/test takes a long time.

github.com/vektah/gqlparser,v1.1.2,h1:ZsyLGn7/7jDNI+y4SEhI4yAxRChlv15pUHMjijT+e68=,cdd0119855b98641e7af60dce5b2848b31f8ef03dfcf097c06912309b86fc97c
github.com/viant/assertly,v0.4.8,h1:5x1GzBaRteIwTr5RAGFVG14uNeRFxVNbXPWrK2qAgpc=,253a5e53bb09bf94be7131d5034a6ba19c6eb1f9b8c7fa66182d577bd7b2d6cd
github.com/viant/toolbox,v0.24.0,h1:6TteTDQ68CjgcCe8wH3D3ZhUQQOJXMTbj/D9rkk2a1k=,d6773a06b59de043eff2003bb97567056a1910eb0fd514f5503873b8f23309f4

	case "gccgo":
		id, _, err := b.gccToolID(BuildToolchain.linker(), "go")
		if err != nil {
			base.Fatalf("%v", err)
		}
		fmt.Fprintf(h, "link %s %s\n", id, ldBuildmode)
		// TODO(iant): Should probably include cgo flags here.
	}
}

// link is the action for linking a single command.
// Note that any new influence on this logic must be reported in b.linkActionID above as well.

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