Update to Drupal 8.0.2. For more information, see https://www.drupal.org/drupal-8.0.2-release-notes

core/modules/file/src/Tests/FileFieldWidgetTest.php

@@ -151,7 +151,7 @@ class FileFieldWidgetTest extends FileFieldTestBase {
         // - First remove the 2nd file.
         // - Then remove what is then the 2nd file (was originally the 3rd file).
         // - Then remove the first file.
-        foreach (array(1,1,0) as $delta) {
+        foreach (array(1, 1, 0) as $delta) {
           // Ensure we have the expected number of Remove buttons, and that they
           // are numbered sequentially.
           $buttons = $this->xpath('//input[@type="submit" and @value="Remove"]');