these 6 derivations will be built:
  /nix/store/pysdg60bxwkp93vkr34wgpjaciwsb4mg-iets-0.1.0.drv
  /nix/store/n1im4d4n2vs29nvsmcdn3drynysv0xnw-closure-info.drv
  /nix/store/ak5j7w9q0s5byj1dk0c2026syf56mq3i-test-script.drv
  /nix/store/mblgmpz3awkb4c9gp5rryjsp5dnq031a-driverConfiguration.json.drv
  /nix/store/alanvrvvcjp202cg0qvjh6vi6wrb22qj-nixos-test-driver-iets-flaketest.drv
  /nix/store/1cv6rr7kscxcsc1xz34jxczr2ij7f46y-container-test-run-iets-flaketest.drv