overflow issue in golang playground

[mwiede]

I copied the direct validation example to the playground https://play.golang.org/p/ygjhVZg59cf
and I got the following error:

go: finding github.com/thedevsaddam/govalidator v1.9.8
go: downloading github.com/thedevsaddam/govalidator v1.9.8
go: extracting github.com/thedevsaddam/govalidator v1.9.8
# github.com/thedevsaddam/govalidator
../gopath075688560/pkg/mod/github.com/thedevsaddam/[email protected]/rules.go:899:7: constant -9223372036854775808 overflows int
../gopath075688560/pkg/mod/github.com/thedevsaddam/[email protected]/rules.go:908:7: constant 9223372036854775807 overflows int

I do not know whether it is a general problem or only inside of the playground, but changing from math.MinInt64 to math.MinInt32 and math.MaxInt64 to math.MaxInt32 solved it.