if err != nil {
		log.Fatal(err)
	}

	fset := token.NewFileSet()
	results, err := run(fset, cfg, analyzers)
	if err != nil {
		log.Fatal(err)
	}

	// In VetxOnly mode, the analysis is run only for facts.
	if !cfg.VetxOnly {
		if analysisflags.JSON {
			// JSON output
			tree := make(analysisflags.JSONTree)
			for _, res := range results {
				tree.Add(fset, cfg.ID, res.a.Name, res.diagnostics, res.err)

go test m/vetcycle
stdout 'm/vetcycle.*\[no test files\]'

# Test with ...
! go test ./vetfail/...
stderr 'Printf format %d'
stdout 'ok\s+m/vetfail/p2'

# Check there's no diagnosis of a bad build constraint in vetxonly mode.
# Use -a so that we need to recompute the vet-specific export data for
# vetfail/p1.
go test -a m/vetfail/p2
! stderr 'invalid.*constraint'

-- go.mod --
module m

go 1.16
-- p1_test.go --

				IgnoreFail: a.IgnoreFail,
				Args:       a.Args,
				Objdir:     a.Objdir,
				Target:     a.Target,
				Failed:     a.Failed,
				Priority:   a.priority,
				Built:      a.built,
				VetxOnly:   a.VetxOnly,
				NeedBuild:  a.needBuild,
				NeedVet:    a.needVet,
			}
			if a.Package != nil {
				// TODO(rsc): Make this a unique key for a.Package somehow.
				a.json.Package = a.Package.ImportPath
			}

	vcfg := a.Deps[0].vetCfg
	if vcfg == nil {
		// Vet config should only be missing if the build failed.
		return fmt.Errorf("vet config not found")
	}

	sh := b.Shell(a)

	vcfg.VetxOnly = a.VetxOnly
	vcfg.VetxOutput = a.Objdir + "vet.out"
	vcfg.PackageVetx = make(map[string]string)

	h := cache.NewHash("vet " + a.Package.ImportPath)
	fmt.Fprintf(h, "vet %q\n", b.toolID("vet"))