these 4 derivations will be built:
  /nix/store/02xsh97iz44n226jrraf6llva1dd4g9d-iets-0.2.0.drv
  /nix/store/bq0x3gidx7yzfr4i0dvsc6r4g1ja8ban-iets-fuzz-diff-0.0.0.drv
  /nix/store/xwjb6v27p3w6pbwdsvn6bzabma72w47b-iets-conformance-adapter.drv
  /nix/store/jm8l3mcv7djg05m4ry1jc64cyikq4s4g-nix-conformance-iets.drv