In the following simplified code, are the pipe.stats automatically deallocated when a new pipe is created?

package main

var pipe = &Pipe{}

type Stat struct {
    Counter int
}

type Pipe struct {
    stats []Stat
}

func (p *Pipe) DoSomething() {
    p.stats[0].Counter++
}

func NewPipe(n int) *Pipe {
    pipe = &Pipe{}
    pipe.stats = make([]Stat, n)
    return pipe
}

func main() {
    var myPipe *Pipe

    for n := 1; n <= 4; n++ {
        myPipe = NewPipe(n)
        myPipe.DoSomething()
    }
    // serve....
}

This is an existing code, with the global variable doubled in main etc. – I just want to check if memory use will accumulate over time

I would expect this gets garbage collected but not sure