golang 从栈逃逸到堆的问题

package main

import "fmt"

func TestScope() []int {
    a := make([]int, 0, 10)
    return a
}

func TestScopeCore() {
    b := TestScope()
    fmt.Println(b)
}

我运行
go tool compile -m headp.go
得到的结果：
headp.go:12:6: can inline TestScope
headp.go:18:16: inlining call to TestScope
headp.go:19:13: inlining call to fmt.Println
headp.go:13:11: make([]int, 0, 10) escapes to heap
headp.go:18:16: make([]int, 0, 10) escapes to heap
headp.go:19:13: b escapes to heap
headp.go:19:13: []interface {}{...} does not escape
<autogenerated>:1: leaking param content: .this

我不大明白为啥make([]int, 0, 10)这里逃逸了两次，还请大神赐教啊