these 2 derivations will be built:
  /nix/store/xih73v6nwzydyfsg9rshj9gqpsqcnk9c-iets-release-0.2.0.drv
  /nix/store/b9ynrwl3mqpp02rd4mwh58fx676wsf1n-inputDerivation-effect-release.drv
building '/nix/store/xih73v6nwzydyfsg9rshj9gqpsqcnk9c-iets-release-0.2.0.drv'...
building '/nix/store/b9ynrwl3mqpp02rd4mwh58fx676wsf1n-inputDerivation-effect-release.drv'...