Also, `string(container.State.Pid)` will not do what you expect. `string(int)` creates a string with one byte set to the `int`. You want this:
```go
if _, err := os.Stat(fmt.Sprintf("/proc/%d", container.State.Pid)); err != nil {
```
or
```go
if _, err := os.Stat("/proc/" + strconv.Itoa(container.State.Pid)); err != nil {
```