these 2 derivations will be built:
  /nix/store/wprfyjbjmlswy8dssbpbfbzyk3w7h9pr-iets-release-0.1.0.drv
  /nix/store/hj2il9zvd0idg5qjylbj8wx2yvsrr8nd-inputDerivation-effect-release.drv
building '/nix/store/wprfyjbjmlswy8dssbpbfbzyk3w7h9pr-iets-release-0.1.0.drv'...
building '/nix/store/hj2il9zvd0idg5qjylbj8wx2yvsrr8nd-inputDerivation-effect-release.drv'...