Exit with non-zero status when import-repository fails

lib/gitlab_projects.rb

@@ -154,19 +154,23 @@ class GitlabProjects
       Timeout.timeout(timeout) do
         Process.wait(pid)
       end
+
+      return false unless $?.exitstatus.zero?
     rescue Timeout::Error
       $logger.error "Importing project #{@project_name} from <#{masked_source}> failed due to timeout."
 
       Process.kill('KILL', pid)
       Process.wait
       FileUtils.rm_rf(full_path)
-      false
-    else
+      return false
+    end
+
     self.class.create_hooks(full_path)
     # The project was imported successfully.
     # Remove the origin URL since it may contain password.
     remove_origin_in_repo
-    end
+
+    true
   end
 
   # Move repository from one directory to another