fixed bug

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 3b05954..25c8783 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -13,6 +13,7 @@
   - name: Bootstrap script exists
     stat:
       path: '{{ bootstrap_script }}'
+    register: bootstrap_exists
 
   - name: Cache bootstrap script state
     cache: