$ git clone -n https://src.fedoraproject.org/rpms/rust-io-lifetimes.git /var/lib/mock/f38-build-side-43-rust-devel-1413406-31444/root/chroot_tmpdir/scmroot/rust-io-lifetimes
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1413406-31444/root/chroot_tmpdir/scmroot/rust-io-lifetimes'...
$ git fetch origin 2ba608107a484da3dd0d867293c64e51d9efad82:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-io-lifetimes
 * [new ref]         2ba608107a484da3dd0d867293c64e51d9efad82 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ba6081 Update to version 1.0.11; Fixes RHBZ#2209753