Go에서 패닉 스택트레이스를 저장하는 방법은 무엇입니까?

package main

import (
    "fmt"
    "runtime/debug"
)

func main() {
    defer func() {
        if r := recover(); r != nil {
            stacktrace := string(debug.Stack())
            fmt.Println("Stacktrace from panic:", stacktrace)
        }
    }()

    var mySlice []int
    j := mySlice[0] // panic

    fmt.Printf("Hello, playground %d", j) // unreachable code
}

Stacktrace from panic:
goroutine 1 [running]:
runtime/debug.Stack(0x1042ff18, 0x98b2, 0x17d048, 0x17d1c0)
    /usr/local/go/src/runtime/debug/stack.go:24 +0xc0
main.main.func1()
    /tmp/sandbox973508195/main.go:11 +0x60
panic(0x17d048, 0x17d1c0)
    /usr/local/go/src/runtime/panic.go:665 +0x260
main.main()
    /tmp/sandbox973508195/main.go:16 +0x60