/usr/lib/ is in distcc-pump 3.1-6.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/distcc-pump/
/usr/lib/distcc-pump/include_server/
/usr/lib/distcc-pump/include_server/distcc_pump_c_extensions.so
/usr/lib/distcc-pump/include_server/include_analyzer.py
/usr/lib/distcc-pump/include_server/macro_eval.py
/usr/lib/distcc-pump/include_server/macro_eval_test.py
/usr/lib/distcc-pump/include_server/include_server.py
/usr/lib/distcc-pump/include_server/include_analyzer_memoizing_node_test.py
/usr/lib/distcc-pump/include_server/mirror_path_test.py
/usr/lib/distcc-pump/include_server/parse_file_test.py
/usr/lib/distcc-pump/include_server/include_analyzer_test.py
/usr/lib/distcc-pump/include_server/cache_basics.py
/usr/lib/distcc-pump/include_server/setup.py
/usr/lib/distcc-pump/include_server/include_server_test.py
/usr/lib/distcc-pump/include_server/include_analyzer_memoizing_node.py
/usr/lib/distcc-pump/include_server/c_extensions_test.py
/usr/lib/distcc-pump/include_server/parse_command_test.py
/usr/lib/distcc-pump/include_server/basics.py
/usr/lib/distcc-pump/include_server/statistics.py
/usr/lib/distcc-pump/include_server/__init__.py
/usr/lib/distcc-pump/include_server/parse_file.py
/usr/lib/distcc-pump/include_server/compress_files.py
/usr/lib/distcc-pump/include_server/parse_command.py
/usr/lib/distcc-pump/include_server/compiler_defaults.py
/usr/lib/distcc-pump/include_server/run.py
/usr/lib/distcc-pump/include_server/basics_test.py
/usr/lib/distcc-pump/include_server/mirror_path.py
/usr/lib/distcc-pump/include_server-3.1.egg-info