326 |     ) -> Result<Cow<[u8]>, RevlogError> {
326 |     ) -> Result<Cow<[u8]>, RevlogError> {
2025-10-11 16:41:54,976 root INFO cc -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Icontrib/python-zstandard/c-ext -Icontrib/python-zstandard/zstd -I/usr/include/python3.12 -c contrib/python-zstandard/c-ext/backend_c.c -o build/temp.linux-x86_64-cpython-312/contrib/python-zstandard/c-ext/backend_c.o -DZSTD_SINGLE_FILE -DZSTDLIB_VISIBLE= -DZDICTLIB_VISIBLE= -DZSTDERRORLIB_VISIBLE= -fvisibility=hidden
ERROR setuptools_scm._file_finders.git listing git files failed - pretending there aren't any
called `Result::unwrap()` on an `Err` value: Error { kind: Uncategorized, message: "no /proc/self/exe available. Is /proc mounted?" }
>>> ERROR: mercurial: build failed