these 6 derivations will be built:
  /nix/store/6bq9wipnzz5pria0jaqrcfzvk6ga8j6p-iets-0.1.0.drv
  /nix/store/qhgv4jw90jk5mmy70xj7scicwaqg4hvg-closure-info.drv
  /nix/store/6k7rs07snp56rk2qdj77nh0gpsfmngrk-test-script.drv
  /nix/store/29w9brb5kq9l0j3081z8m0ga6vxsnbnp-driverConfiguration.json.drv
  /nix/store/6y6nnq4q8li17df6r5pywzbss5l1w3gr-nixos-test-driver-iets-flaketest.drv
  /nix/store/l05000lg0w0kqypf2g20nkbb5w0w49cq-container-test-run-iets-flaketest.drv