for (int i = 0; i < end; i++) {
                StackTraceElement stackTraceElement = stackTrace.get(i);
                StackTraceRelevance rel = failure.getStackTraceRelevance(i);
                appendFrame(prefix, stackTraceElement, rel);
            }

            if (commonTailSize > 0) {
                builder.append(prefix)
                    .append("\t... ")

func libname(args []string, pkgs []*load.Package) (string, error) {
	var libname string
	appendName := func(arg string) {
		if libname == "" {
			libname = arg
		} else {
			libname += "," + arg
		}
	}
	var haveNonMeta bool
	for _, arg := range args {
		if search.IsMetaPackage(arg) {
			appendName(arg)
		} else {
			haveNonMeta = true
		}
	}