alpha-team/at-download: rssbot/rssbot/rssbot.go; 48 LoC

Found a possible issue in [alpha-team/at-download](https://www.github.com/alpha-team/at-download) at [rssbot/rssbot/rssbot.go](https://github.com/alpha-team/at-download/blob/af87459b9c35616eff238c54dec46865a60d9203/rssbot/rssbot/rssbot.go#L143-L190)

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 urlkey used in defer or goroutine at line 183

[Click here to see the code in its original context.](https://github.com/alpha-team/at-download/blob/af87459b9c35616eff238c54dec46865a60d9203/rssbot/rssbot/rssbot.go#L143-L190)

Click here to show the 48 line(s) of Go which triggered the analyzer.

```go
for urlkey := range allrss {
splitted := strings.Split(urlkey, ":")
if len(splitted) != 3 {
continue
}
uri := strings.Join(splitted[1:], ":")

j := i
i++
go func(uri string, firsttime bool) {
n_errors := 0
feed := rss.New(5, true, chanHandler, botItemHandler(bot, firsttime))

// Start calcule by groups, calculate how many sleep before execute
timeofsleep := math.Mod(float64(j), blocks) * nseconds // float64(int(j/module)) * nseconds
start := time.Now()
<-time.After(time.Duration(int(timeofsleep*1000)) * time.Millisecond)
fmt.Printf("%d (%s) started after %v seconds\n", j, uri, time.Since(start))

for {
if err := feed.Fetch(uri, charsetReader); err != nil {
// fmt.Fprintf(os.Stderr, "[e] %s: %s\n", uri, err)
// if isAffordableNetworkError(err) && n_errors < MAX_RETRIES {
if n_errors < MAX_RETRIES {
fmt.Fprintf(os.Stderr, "[e] (%d/%d) %s: %s\n", n_errors, MAX_RETRIES, uri, err)
n_errors++
// <-time.After(time.Duration(feed.SecondsTillUpdate() * 1e9))
<-time.After(time.Duration(MINS_SLEEP) * time.Minute)
continue
} else {
fmt.Fprintf(os.Stderr, "[e] (%d/%d) %s: %s\n", n_errors, MAX_RETRIES, uri, err)
fmt.Printf("Removing url %s\n", uri)
cleanBadUrl(uri)
return
}
}
n_errors = 0

if firsttime {
firsttime = false
setRssValue(urlkey, "true")
}
// Every MINS_SLEEP mins
// <-time.After(time.Duration(feed.SecondsTillUpdate() * 1e9))
<-time.After(time.Duration(MINS_SLEEP) * time.Minute)
}
}(uri, true)
}

```

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commit ID: af87459b9c35616eff238c54dec46865a60d9203