<-compl
}

func TestRaceChanItselfNil(t *testing.T) {
	c := make(chan int, 10)
	go func() {
		c <- 0
	}()
	time.Sleep(1e7)
	c = nil
	_ = c
}

func TestRaceChanItselfClose(t *testing.T) {
	compl := make(chan bool, 1)
	c := make(chan int)
	go func() {
		close(c)
		compl <- true
	}()
	c = make(chan int)
	<-compl
}