vtolstov/cloudmeta: main.go; 20 LoC

Found a possible issue in [vtolstov/cloudmeta](https://www.github.com/vtolstov/cloudmeta) at [main.go](https://github.com/vtolstov/cloudmeta/blob/1f1a0369cec929c4a7263040209037f1b2458b90/main.go#L154-L173)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first issue it finds, so please do not limit your consideration to the contents of the below message.

> range-loop variable s used in defer or goroutine at line 166

[Click here to see the code in its original context.](https://github.com/vtolstov/cloudmeta/blob/1f1a0369cec929c4a7263040209037f1b2458b90/main.go#L154-L173)

Click here to show the 20 line(s) of Go which triggered the analyzer.

```go
for _, s := range servers.List() {
wait := make(chan struct{})
go func() {
defer func() {
if r := recover(); r != nil {
err, ok := r.(error)
if !ok {
err = fmt.Errorf("pkg: %v", r)
}
fmt.Printf(err.Error())
}
}()
if err := s.Stop(false); err != nil {
panic(err)
}
close(wait)
}()
<-wait
servers.Del(s.name)
}

```

Leave a reaction on this issue to contribute to the project by classifying this instance as a **Bug** :-1:, **Mitigated** :+1:, or **Desirable Behavior** :rocket:
See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: 1f1a0369cec929c4a7263040209037f1b2458b90

Start with main.go lines 154-173 and review the goroutine and defer usage around the range over servers.List(). Confirm whether the analyzer warning represents a real defect, then verify the chosen classification against the shown behavior and any available checks; done means the finding is accurately classified.

Written by the indexing model from the issue text.