Bug#1087305: fonts-rocknroll: FTBFS: FileNotFoundError: [Errno 2] No such file or directory: 'instance_ufo'

[Santiago Vila <sanvila@debian.org>]

Package: src:fonts-rocknroll
Version: 1.000-20210120-2
Severity: serious
Tags: ftbfs

Dear maintainer:

During a rebuild of all packages in unstable, your package failed to build:

--------------------------------------------------------------------------------
[...]
 debian/rules binary
dh binary
   dh_update_autotools_config
   dh_autoreconf
   debian/rules override_dh_auto_build
make[1]: Entering directory '/<<PKGBUILDDIR>>'
python3 /<<PKGBUILDDIR>>/build.py
INFO:fontmake.font_project:Building master UFOs and designspace from Glyphs source
INFO:glyphsLib.parser:Parsing .glyphs file
INFO:glyphsLib.builder:Running 'propagate_all_anchors' transformation
INFO:fontmake.font_project:Loading 1 DesignSpace source UFOs
INFO:fontmake.font_project:Building TTF for RocknRollOne-Regular
INFO:ufo2ft:Pre-processing glyphs
INFO:ufo2ft.filters:Running EraseOpenCornersFilter on RocknRollOne-Regular
INFO:ufo2ft.filters:Running DecomposeComponentsFilter on RocknRollOne-Regular
INFO:ufo2ft.filters:Running RemoveOverlapsFilter on RocknRollOne-Regular
INFO:ufo2ft.filters:Running CubicToQuadraticFilter on RocknRollOne-Regular
INFO:ufo2ft.filters.cubicToQuadratic:New spline lengths: 1: 14506, 2: 98643, 3: 13169, 4: 4924, 5: 419, 6: 42, 7: 7
INFO:ufo2ft:Building OpenType tables
INFO:ufo2ft.postProcessor:Renaming glyphs to final production names
INFO:fontmake.font_project:Saving master_ttf/RocknRollOne-Regular.ttf
[RocknRoll] Generating TTFs
[RocknRollOne-Regular] Adding stub DSIG
[RocknRollOne-Regular] Making other changes
Traceback (most recent call last):
  File "/<<PKGBUILDDIR>>/build.py", line 26, in <module>
    shutil.rmtree("instance_ufo")
  File "/usr/lib/python3.12/shutil.py", line 759, in rmtree
    _rmtree_safe_fd(stack, onexc)
  File "/usr/lib/python3.12/shutil.py", line 703, in _rmtree_safe_fd
    onexc(func, path, err)
  File "/usr/lib/python3.12/shutil.py", line 669, in _rmtree_safe_fd
    orig_st = os.lstat(name, dir_fd=dirfd)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'instance_ufo'
make[1]: *** [debian/rules:8: override_dh_auto_build] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:5: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------

The above is just how the build ends and not necessarily the most relevant part.
If required, the full build log is available here:

https://people.debian.org/~sanvila/build-logs/202411/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you could not reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and affects, so that this is still visible in the BTS web
page for this package.

Thanks.