diff -Naur b/vendor/magento/framework/Setup/FilePermissions.php a/vendor/magento/framework/Setup/FilePermissions.php
--- b/vendor/magento/framework/Setup/FilePermissions.php	2016-09-23 16:01:12.000000000 -0500
+++ a/vendor/magento/framework/Setup/FilePermissions.php	2016-09-23 16:22:09.000000000 -0500
@@ -233,26 +233,8 @@
      */
     public function getMissingWritablePathsForInstallation($associative = false)
     {
-        $required = $this->getInstallationWritableDirectories();
-        $current = $this->getInstallationCurrentWritableDirectories();
-        $missingPaths = [];
-        foreach (array_diff($required, $current) as $missingPath) {
-            if (isset($this->nonWritablePathsInDirectories[$missingPath])) {
-                if ($associative) {
-                    $missingPaths[$missingPath] = $this->nonWritablePathsInDirectories[$missingPath];
-                } else {
-                    $missingPaths = array_merge(
-                        $missingPaths,
-                        $this->nonWritablePathsInDirectories[$missingPath]
-                    );
-                }
-            }
-        }
-        if ($associative) {
-            $required = array_flip($required);
-            $missingPaths = array_merge($required, $missingPaths);
-        }
-        return $missingPaths;
+        // Unnecessary check in controlled environment
+        return [];
     }
 
     /**
@@ -275,8 +257,7 @@
      */
     public function getUnnecessaryWritableDirectoriesForApplication()
     {
-        $required = $this->getApplicationNonWritableDirectories();
-        $current = $this->getApplicationCurrentNonWritableDirectories();
-        return array_diff($required, $current);
+        // Unnecessary check in controlled environment
+        return [];
     }
 }