these 6 derivations will be built:
  /nix/store/cy045wyka3lcz5m6xxb4759hp4drxvn5-iets-0.1.0.drv
  /nix/store/xb538gjaapfraz19mzdr462xri3m6fnx-closure-info.drv
  /nix/store/dpscyds5mrxbh7fiq3b0q4mj2ygxaaka-test-script.drv
  /nix/store/n7pq401k8l2p3iyl0k8w6xcspx4328zn-driverConfiguration.json.drv
  /nix/store/r51bj2q6y9xbkbiwrm5qz5cqbrzf0k03-nixos-test-driver-iets-cachetest.drv
  /nix/store/7ngfp043is8ls6dc53c4flna7zg8s9ma-container-test-run-iets-cachetest.drv