env GO111MODULE=on

! go list use.go
stderr 'example.com/missingpkg/deprecated: package provided by example.com/missingpkg at latest version v1.0.0 but not at required version v1.0.1-beta'

-- use.go --
package use

import (
	_ "example.com/missingpkg/deprecated"
	_ "example.com/usemissingpre"
)
