golang uuid string vs binary benchmark

bench.go

package main

import (
	"log"
	"testing"

	"github.com/google/uuid"
)

func uuidString() string {
	uid, err := uuid.NewUUID()
	if err != nil {
		log.Println(err)
	}
	return uid.String()
}

func uuidBinary() []byte {
	uid, err := uuid.NewUUID()
	if err != nil {
		log.Println(err)
	}
	b, err := uid.MarshalBinary()
	if err != nil {
		log.Fatal(err)
	}
	return b
}

func BenchmarkUUID_String(b *testing.B) {
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		uuidString()
	}
}

func BenchmarkUUID_Binary(b *testing.B) {
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		uuidBinary()
	}
}