main.go|15 col 9| Error return value of os.Open is not checked (errcheck)
main.go|17 col 13| Error return value of os.ReadFile is not checked (errcheck)
main.go|20 col 6| func unused1 is unused (unused)
main.go|13 col 2| printf: fmt.Sprintf format %d reads arg #1, but call has 0 args (govet)
main.go|12 col 2| ineffectual assignment to x (ineffassign)