these 2 derivations will be built:
  /nix/store/7rznd7hn1cnr96m48i0l9wc2sl1c3qir-tgrab-0.1.1-vendor.drv
  /nix/store/2x7psp4lsmacwlb2478j5558nah46mp9-tgrab-0.1.1.drv