these 4 derivations will be built:
  /nix/store/8af3ycn9wpg0h1nn8rxw4imvvijspjyv-iets-0.2.0.drv
  /nix/store/sc11g753ryhyi0jmil09a9d64mnccgnf-iets-fuzz-diff-0.0.0.drv
  /nix/store/37c34safz3iank1q8n8l3vw8hyzhkahh-iets-conformance-adapter.drv
  /nix/store/3cb09wlr93x9ir6vzm8n559jmjcs7rzj-nix-conformance-iets.drv