common: common{
					signal:  make(chan bool),
					barrier: make(chan bool),
					name:    "",
					w:       buf,
				},
				context: ctx,
			}
			if tc.chatty {
				root.chatty = newChattyPrinter(root.w)
				root.chatty.json = tc.json
			}
			ok := root.Run(tc.desc, tc.f)
			ctx.release()

			if ok != tc.ok {
				t.Errorf("%s:ok: got %v; want %v", tc.desc, ok, tc.ok)
			}

			tctx.deadline = deadline
			fctx := &fuzzContext{deps: deps, mode: seedCorpusOnly}
			root := common{w: os.Stdout} // gather output in one place
			if Verbose() {
				root.chatty = newChattyPrinter(root.w)
			}
			for _, ft := range fuzzTests {
				if shouldFailFast() {
					break
				}
				testName, matched, _ := tctx.match.fullName(nil, ft.Name)
				if !matched {
					continue
				}

		benchFunc: func(b *B) {
			for _, Benchmark := range bs {
				b.Run(Benchmark.Name, Benchmark.F)
			}
		},
		benchTime: benchTime,
		context:   ctx,
	}
	if Verbose() {
		main.chatty = newChattyPrinter(main.w)
	}
	main.runN(1)
	return !main.failed
}

// processBench runs bench b for the configured CPU counts and prints the results.
func (ctx *benchContext) processBench(b *B) {

type chattyPrinter struct {
	w          io.Writer
	lastNameMu sync.Mutex // guards lastName
	lastName   string     // last printed test name in chatty mode
	json       bool       // -v=json output mode
}

func newChattyPrinter(w io.Writer) *chattyPrinter {
	return &chattyPrinter{w: w, json: chatty.json}
}

// prefix is like chatty.prefix but using p.json instead of chatty.json.