$ git clone -n https://src.fedoraproject.org/rpms/rust-base100.git /var/lib/mock/f29-build-7152-1762/root/thebuilddir/tmp/scmroot/rust-base100
Cloning into '/var/lib/mock/f29-build-7152-1762/root/thebuilddir/tmp/scmroot/rust-base100'...
$ git reset --hard 2deb049a839aa8b306682f48cc9f117c4ba21aa6
HEAD is now at 2deb049 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild