$ git clone -n https://src.fedoraproject.org/rpms/rust-addr2line.git /var/lib/mock/f41-build-side-1-2803271-32817/root/chroot_tmpdir/scmroot/rust-addr2line
Cloning into '/var/lib/mock/f41-build-side-1-2803271-32817/root/chroot_tmpdir/scmroot/rust-addr2line'...
$ git fetch origin 7fbefbd2da590b2184d62e9e9bf2559b920d2b31:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-addr2line
 * [new ref]         7fbefbd2da590b2184d62e9e9bf2559b920d2b31 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fbefbd Update to version 0.24.1; Fixes RHBZ#2300011