func waitOnCommand(wg *sync.WaitGroup, cmd *ssh.RunningCmd, result *params.RunResult, cancel <-chan struct{}) {
defer wg.Done()
response, err := cmd.WaitWithCancel(cancel)
logger.Debugf("response from %s: %#v (err:%v)", result.MachineId, response, err)
result.ExecResponse = response
if err != nil {
result.Error = err.Error()
}
}
