// implicit @upgrade. path@none is "downgrade away".
func parseArgs(ctx context.Context, rawArgs []string) (dropToolchain bool, queries []*query) {
	defer base.ExitIfErrors()

	for _, arg := range search.CleanPatterns(rawArgs) {
		q, err := newQuery(arg)
		if err != nil {
			base.Error(err)
			continue
		}

		if q.version == "none" {
			switch q.pattern {