I forgot to add that the previous report happens when compiling with '-O2 -g' or with '-O3 -g'.
Test bool-vector-count-population-1-nil backtrace:
(if (unwind-protect (setq value-67354 (apply fn-67352 args-67353)) (
(let (form-description-67356) (if (unwind-protect (setq value-67354
(let ((value-67354 (quote ert-form-evaluation-aborted-67355))) (let
(let ((fn-67352 (function eql)) (args-67353 (list (bool-vector-count
(let* ((bv (make-bool-vector 45 nil))) (aset bv 40 t) (aset bv 0 t)
(lambda nil (let* ((bv (make-bool-vector 45 nil))) (aset bv 40 t) (a
#[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 q\210\305 )\306\307\310\311\312\313!\314\"\315\316%DC\2
funcall(#[0 "r\304 q\210\305 )\306\307\310\311\312\313!\314\"\315\
ert-run-test([cl-struct-ert-test bool-vector-count-population-1-nil
ert-run-or-rerun-test([cl-struct-ert--stats t [[cl-struct-ert-test a
ert-run-tests(t #[385 "\306\307\"\203D\211\211G\310U\203\211@\20
ert-run-tests-batch(nil)
ert-run-tests-batch-and-exit()
command-line-1(("-L" ";." "-l" "./add-log-tests.el" "-l" "./advice-t
command-line()
normal-top-level()
Which is not good either.