env GO111MODULE=on

# Regression test for golang.org/issue/31031:
# Importing or loading a non-existent package in cmd/ should print
# a clear error in module mode.

! go list cmd/unknown
stderr '^package cmd/unknown is not in std \('$GOROOT'[/\\]src[/\\]cmd[/\\]unknown\)$'

go list -f '{{range .DepsErrors}}{{.Err}}{{end}}' x.go
stdout '^package cmd/unknown is not in std \('$GOROOT'[/\\]src[/\\]cmd[/\\]unknown\)$'

-- x.go --
package x

import _ "cmd/unknown"