"make lisp/progmodes/flymake-tests" fails on master@9babf61

[Jens Schmidt]

Has anybody else also seen these test errors on master@9babf61:

------------------------- snip -------------------------
make[1]: Entering directory '/home/jschmidt/work/emacs-master/test'
  GEN      lisp/progmodes/flymake-tests.log
Running 9 tests (2023-09-23 21:25:09+0200, selector `(not (tag :unstable))')
[...]
Test different-diagnostic-types condition:
    (error "Can't find a suitable init function")
   FAILED  1/9  different-diagnostic-types (0.036075 sec) at 
lisp/progmodes/flymake-tests.el:143
[...]
7 unexpected results:
   FAILED  different-diagnostic-types
   FAILED  dummy-backends
   FAILED  included-c-header-files
   FAILED  perl-backend
   FAILED  recurrent-backend
   FAILED  warning-predicate-function-gcc
   FAILED  warning-predicate-rx-gcc

1 skipped results:
  SKIPPED  ruby-backend

make[1]: *** [Makefile:181: lisp/progmodes/flymake-tests.log] Error 1
make[1]: Leaving directory '/home/jschmidt/work/emacs-master/test'
make: *** [Makefile:247: lisp/progmodes/flymake-tests] Error 2
------------------------- snip -------------------------

Haven't found anything recent on emacs-devel or any open bugs in that
direction.

Thanks.