Just pulled and ran "make test". I get one failure with the appended backtrace:
Nick Test test-org/backward-element backtrace: (if (unwind-protect (setq value-4576 (apply fn-4574 args-4575)) (set (let (form-description-4578) (if (unwind-protect (setq value-4576 (a (let ((value-4576 (quote ert-form-evaluation-aborted-4577))) (let (f (let ((fn-4574 (function looking-at)) (args-4575 (list (regexp-quote (progn (org-mode) (progn (insert "\n* Head 1\n** Head 1.1\n*** Head (unwind-protect (progn (org-mode) (progn (insert "\n* Head 1\n** Hea (save-current-buffer (set-buffer temp-buffer) (unwind-protect (progn (let ((temp-buffer (generate-new-buffer " *temp*"))) (save-current-b (lambda nil (let ((temp-buffer (generate-new-buffer " *temp*"))) (sa #[0 "\306\307!r\211q\210\310\311\312\313\314\315!\316\"\317\320%DC funcall(#[0 "\306\307!r\211q\210\310\311\312\313\314\315!\316\"\31 ert--run-test-internal([cl-struct-ert--test-execution-info [cl-struc #[0 "r\304\305!q\210\306 d\307\223)\310\311\312\313\314\315!\316\" funcall(#[0 "r\304\305!q\210\306 d\307\223)\310\311\312\313\314\315 ert-run-test([cl-struct-ert-test test-org/backward-element "Test `or ert-run-or-rerun-test([cl-struct-ert--stats "\\(org\\|ob\\)" [[cl-st ert-run-tests("\\(org\\|ob\\)" #[385 "\306\307\"\203D