# Test support for declaring needed Go version in module. env GO111MODULE=on env TESTGO_VERSION=go1.21 ! go list stderr -count=1 '^go: sub@v1.0.0: module ./sub requires go >= 1.999 \(running go 1.21\)$' ! go build sub stderr -count=1 '^go: sub@v1.0.0: module ./sub requires go >= 1.999 \(running go 1.21\)$' -- go.mod -- module m go 1.1 require ( sub v1.0.0 ) replace ( sub => ./sub ) -- x.go -- package x -- sub/go.mod -- module sub go 1.999 -- sub/x.go -- package x