these 6 derivations will be built:
  /nix/store/39k1v81afgr9jgzfl16zgif046n8jh5b-iets-0.1.0.drv
  /nix/store/gkkxqa2fq9gxlp45d2zinq85hjzw3nnf-closure-info.drv
  /nix/store/mdg03saqmrl353gy29ig1gmdp06626z8-test-script.drv
  /nix/store/db45w0jcmzxk1qf9ih9c2zscsdsgp6f8-driverConfiguration.json.drv
  /nix/store/3060g2r0pi2jbmjzzy4mm1cpx80zy12y-nixos-test-driver-iets-cachetest.drv
  /nix/store/jk2ii5wr03kk5ffs9d2gc5bvridzflx7-container-test-run-iets-cachetest.drv