$ git clone -n https://src.fedoraproject.org/rpms/rust-userfaultfd-sys.git /var/lib/mock/f38-build-side-42-init-devel-490571-24898/root/chroot_tmpdir/scmroot/rust-userfaultfd-sys
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-490571-24898/root/chroot_tmpdir/scmroot/rust-userfaultfd-sys'...
$ git reset --hard 2d9fdd312bc5baa3d1605782ce9c13421dadb566
HEAD is now at 2d9fdd3 Update bindgen to 0.63