# Test support for declaring needed Go version in module.

env GO111MODULE=on

go list
! go build sub
stderr '^sub: module requires Go 1.999 or later$'

-- go.mod --
module m
go 1.1
require (
	sub v1.0.0
)
replace (
	sub => ./sub
)

-- x.go --
package x

-- sub/go.mod --
module m
go 1.999

-- sub/x.go --
package x