$ git clone -n https://src.fedoraproject.org/rpms/rust-warp.git /var/lib/mock/f38-build-side-43-rust-devel-1411108-31427/root/chroot_tmpdir/scmroot/rust-warp
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1411108-31427/root/chroot_tmpdir/scmroot/rust-warp'...
$ git fetch origin 9b45cf21d73dcf877c203a8fe4ea21b4bce45528:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-warp
 * [new ref]         9b45cf21d73dcf877c203a8fe4ea21b4bce45528 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b45cf2 Update to version 0.3.6; Fixes RHBZ#2240991