2.10.23 fails tests

[Marijn Schouten (hkBst)]

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I got the following output while runnung tests for lilypond-2.10.23:

Layout output to `lily-14eebdf8c3-1.eps'...
Layout output to `lily-14eebdf8c3.eps'...

We were called in barnumber 3.


Compiling collated-files.texi...
Writing `collated-files.texi'...
lilypond-book.py: warning: option --psfonts not used
lilypond-book.py: warning: processing with dvips will have no fonts
lilypond-book.py (GNU LilyPond) @TOPLEVEL_VERSION@
LANG= makeinfo  --enable-encoding -I ./out-test
- --output=out-test/collated-files.html
-
--css-include=/var/tmp/portage/media-sound/lilypond-2.10.23/work/lilypond-2.10.23/Documentation/texinfo.css
- --html --no-split --no-headers out-test/collated-files.texi
out-test/collated-files.texi:6: warning: unrecognized encoding name `utf-8'.
rm out-test/collated-files.texi
make[1]: Leaving directory
`/var/tmp/portage/media-sound/lilypond-2.10.23/work/lilypond-2.10.23/input/regression'
rm -rf
/var/tmp/portage/media-sound/lilypond-2.10.23/work/lilypond-2.10.23/out/test-results
mkdir -p
/var/tmp/portage/media-sound/lilypond-2.10.23/work/lilypond-2.10.23/out/test-results
/usr/bin/python ./buildscripts/output-distance.py --create-images --output-dir
/var/tmp/portage/media-sound/lilypond-2.10.23/work/lilypond-2.10.23/out/test-results
input/regression/out-test-baseline input/regression/out-test/
Traceback (most recent call last):
  File "./buildscripts/output-distance.py", line 1223, in ?
    main()
  File "./buildscripts/output-distance.py", line 1220, in main
    compare_trees (a[0], a[1], name, options.threshold)
  File "./buildscripts/output-distance.py", line 940, in compare_trees
    data.compare_trees (dir1, dir2)
  File "./buildscripts/output-distance.py", line 792, in compare_trees
    (root, dirs, files) = os.walk (dir1).next ()
StopIteration
make: *** [local-check] Error 1
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