vscode

.gitignore

@@ -4,4 +4,3 @@ npm-debug.log
 *~
 *.log
 .idea
-.vscode

.vscode/launch.json

@@ -0,0 +1,25 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "args": [
+        "--colors",
+        "${workspaceFolder}/test",
+        "-R",
+        "spec",
+        "--exit"
+      ],
+      "internalConsoleOptions": "openOnSessionStart",
+      "name": "Mocha Tests",
+      "program": "./node_modules/mocha/bin/mocha.js",
+      "request": "launch",
+      "skipFiles": [
+        "<node_internals>/**"
+      ],
+      "type": "node"
+    }
+  ]
+}

lib/docker.js

@@ -313,7 +313,7 @@ Docker.prototype.buildImage = function(file, opts, callback) {
         });
       });
     } else {
-      dial(null, callback);
+      dial(callback);
     }
   }