these 4 derivations will be built:
  /nix/store/zlsz5mp0gpclvg5j28xc5r3zjzb7ay1a-iets-fuzz-diff-0.0.0.drv
  /nix/store/zwb5hv0ifm9l6nx805479y3h4xjhrf84-iets-0.1.0.drv
  /nix/store/c5lh3y63xbr00y2b79da88ynvgga4daz-iets-conformance-adapter.drv
  /nix/store/si9pmh4zkyzyq3qabcfi5s2j7sp2z9xw-nix-conformance-iets.drv