$ git clone -n https://src.fedoraproject.org/rpms/rust-futures-lite.git /var/lib/mock/f40-build-2122802-50745/root/chroot_tmpdir/scmroot/rust-futures-lite
Cloning into '/var/lib/mock/f40-build-2122802-50745/root/chroot_tmpdir/scmroot/rust-futures-lite'...
$ git fetch origin aa8ff02b9ca0fbd11463023e83fa53b413ef1600:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-futures-lite
 * [new ref]         aa8ff02b9ca0fbd11463023e83fa53b413ef1600 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa8ff02 Update to version 2.0.1; Fixes RHBZ#2246178