these 4 derivations will be built:
  /nix/store/29lwgb7rraxbr5hyaybjmza7l1zqnm4a-iets-fuzz-diff-0.0.0.drv
  /nix/store/hj6kid3bks3zm1z76frclsvfaa4m6457-iets-0.2.0.drv
  /nix/store/vyfa723g3fkq8rkyjlxdbpwyrjhv39a2-iets-conformance-adapter.drv
  /nix/store/4lk2gjs6q852zgwafh67wzscrn5pijv7-nix-conformance-iets.drv