https://hg.mozilla.org/mozilla-central/rev/ea7fa4a7f31d changed some #includes in browser/components/preferences/in-content/preferences.xul

 1:12.10 Elapsed: 0.49s; From mozilla-central/obj/dist/bin: Kept 1395 existing; Added/updated 44; Removed 0 files and 0 directories.
 1:12.24 Traceback (most recent call last):
 1:12.24   File "/usr/local/Cellar/python@2/2.7.16/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 174, in _run_module_as_main
 1:12.24     "__main__", fname, loader, pkg_name)
 1:12.24   File "/usr/local/Cellar/python@2/2.7.16/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 72, in _run_code
 1:12.25     exec code in run_globals
 1:12.25   File "mozilla-central/python/mozbuild/mozbuild/action/process_install_manifest.py", line 114, in <module>
 1:12.25     main(sys.argv[1:])
 1:12.25   File "mozilla-central/python/mozbuild/mozbuild/action/process_install_manifest.py", line 100, in main
 1:12.25     defines=args.defines)
 1:12.25   File "mozilla-central/python/mozbuild/mozbuild/action/process_install_manifest.py", line 69, in process_manifest
 1:12.25     remove_empty_directories=remove_empty_directories)
 1:12.25   File "mozilla-central/python/mozbuild/mozpack/copier.py", line 432, in copy
 1:12.25     copy_results.append((destfile, f.copy(destfile, skip_if_older)))
 1:12.25   File "mozilla-central/python/mozbuild/mozpack/files.py", line 577, in copy
 1:12.25     skip = not BaseFile.any_newer(dest.path, pp_deps)
 1:12.25   File "mozilla-central/python/mozbuild/mozpack/files.py", line 151, in any_newer
 1:12.25     if dest_mtime < int(os.path.getmtime(input) * 1000):
 1:12.25   File "mozilla-central/obj/_virtualenvs/init/bin/../lib/python2.7/genericpath.py", line 62, in getmtime
 1:12.25     return os.stat(filename).st_mtime

 1:12.25 OSError: [Errno 2] No such file or directory: 'mozilla-central/browser/components/preferences/in-content/containers.xul'

 1:12.26 make[4]: *** [install-dist/bin/browser] Error 1
 1:12.26 make[3]: *** [faster] Error 2
 1:12.26 make[2]: *** [pre-export] Error 2
 1:12.26 make[1]: *** [default] Error 2
 1:12.26 make: *** [build] Error 2

oups, does it still make sense to do add a clobber info ?