// +build ignore,OMIT package main import ( "fmt" "math/rand" "time" ) func main() { go boring("boring!") fmt.Println("I'm listening.") time.Sleep(2 * time.Second) fmt.Println("You're boring; I'm leaving.") } // STOP OMIT func boring(msg string) { for i := 0; ; i++ { fmt.Println(msg, i) time.Sleep(time.Duration(rand.Intn(1e3)) * time.Millisecond) } }