these 4 derivations will be built:
  /nix/store/52glgjnbsf8aagisg0dxb2aavanxax9m-iets-0.1.0.drv
  /nix/store/vs69yql0yiwhbj00nqlab7ci5hq6j1fm-iets-fuzz-diff-0.0.0.drv
  /nix/store/j7097m7m85m3fdq9szmg60rs7y632hl2-iets-conformance-adapter.drv
  /nix/store/hw0w3mv8sbvap73adfibm70hy8rm2qw9-nix-conformance-iets.drv