these 3 derivations will be built:
  /nix/store/bqkjd94cdrf0bq8avgcabv1sai6hbf3s-tgrab-0.1.1-vendor.drv
  /nix/store/dx5bpf37lkd7x5cmli5mhd884yqw5g3k-tgrab-0.1.1.drv
  /nix/store/xfczr4bh3wxqmhfh81mji21s25cfahy8-check-tgrab.drv