$ git clone -n https://src.fedoraproject.org/rpms/rust-b3sum.git /var/lib/mock/f40-build-806157-144960/root/chroot_tmpdir/scmroot/rust-b3sum
Cloning into '/var/lib/mock/f40-build-806157-144960/root/chroot_tmpdir/scmroot/rust-b3sum'...
$ git reset --hard 1580c71d551c52d789fa18a50c68bfdbca77cdd9
HEAD is now at 1580c71 Update to 1.5.1 (close RHBZ#2269130)