+> target=/nix/store/z8bff9l27ylhyxd7cblh62sg00wpycs9-crt-builder 
 +> mkdir -p /nix/store/z8bff9l27ylhyxd7cblh62sg00wpycs9-crt-builder. 
 +> cp /build/.attr-1lf969yddshzhld7sr1vbagr07bnygg99lgl6gk5kxcnp4z9wbcq /nix/store/z8bff9l27ylhyxd7cblh62sg00wpycs9-crt-builder