No it won't: fmt.Println("foo") You're not forced to handle the error. Not to mention more obscure cases like a, err1 := foo() if err1 != nil { r

No it won't: fmt.Println("foo") You're not forced to handle the error. Not to mention more obscure cases like a, err1 := foo() if err1 != nil { return err1 } b, err2 := bar() if err2 != nil { return err1 } // bug