$ git clone -n https://src.fedoraproject.org/rpms/system-rules.git /var/lib/mock/f38-build-side-42-init-devel-662776-26637/root/chroot_tmpdir/scmroot/system-rules
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-662776-26637/root/chroot_tmpdir/scmroot/system-rules'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/system-rules.git/': The requested URL returned error: 503