add missing self

lib/modules/swarm/index.js

@@ -8,6 +8,7 @@ const StorageProcessesLauncher = require('../storage/storageProcessesLauncher');
 class Swarm {
 
   constructor(embark, _options) {
+    const self = this;
     this.logger = embark.logger;
     this.events = embark.events;
     this.buildDir = embark.config.buildDir;