$ git clone -n https://gitee.com/renbo02/cargo-vendored-nix.git /var/lib/mock/dist-an8.9-build-343684-70043/root/chroot_tmpdir/scmroot/cargo-vendored-nix
Cloning into '/var/lib/mock/dist-an8.9-build-343684-70043/root/chroot_tmpdir/scmroot/cargo-vendored-nix'...
$ git reset --hard origin/a8
HEAD is now at 2ad2c8d add nix-0.27.1