main: don't print ok for a successful compile-only

main.go

@@ -348,7 +348,7 @@ func Test(pkgName string, stdout, stderr io.Writer, options *compileopts.Options
 		fmt.Fprintf(w, "?   \t%s\t[no test files]\n", err.ImportPath)
 		// Pretend the test passed - it at least didn't fail.
 		return true, nil
-	} else if passed {
+	} else if passed && !testConfig.CompileOnly {
 		fmt.Fprintf(w, "ok  \t%s\t%.3fs\n", importPath, duration.Seconds())
 	} else {
 		fmt.Fprintf(w, "FAIL\t%s\t%.3fs\n", importPath, duration.Seconds())