these 4 derivations will be built:
  /nix/store/9sp4v5xnvaiankarh8sb94b5mzwdw9mz-iets-fuzz-diff-0.0.0.drv
  /nix/store/c45ihjqai1vj8bcbl413944hr0pdimnh-iets-0.1.0.drv
  /nix/store/s9znr4sc4mvlwha6bkgnk7228rv128rr-iets-conformance-adapter.drv
  /nix/store/v6qmlmwhyk0mqcz86z3g7r21x476s4vi-nix-conformance-iets.drv