$ git clone -n https://src.fedoraproject.org/rpms/rust.git /var/lib/mock/f41-build-847106-163709/root/chroot_tmpdir/scmroot/rust
Cloning into '/var/lib/mock/f41-build-847106-163709/root/chroot_tmpdir/scmroot/rust'...
$ git fetch origin 295d43e43e85b5ca5b275c0c4728e12ec40e5242:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust
 * [new ref]         295d43e43e85b5ca5b275c0c4728e12ec40e5242 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 295d43e Update to Rust 1.80.1