these 6 derivations will be built:
  /nix/store/nv2paljbbd5ar424yjqdanjbcr6bywm4-iets-0.1.0.drv
  /nix/store/l207f8c1fvp9craz9p5ng1vcym4p6jmd-closure-info.drv
  /nix/store/04bcarmq39m3yihwfg4sds5r1ifjpyph-test-script.drv
  /nix/store/2c962q88bjmxa91pic9xq2iyybcmq2hh-driverConfiguration.json.drv
  /nix/store/23a3qh85pdg5x9qg39wigw45pcy4bg4k-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/hv1pmd5p5ljn3v7vpydhzqq1agaf6dzn-container-test-run-iets-grpc-e2e.drv