these 4 derivations will be built:
  /nix/store/ywv610ariynj6s0xal2zcndkqamx919i-test-script.drv
  /nix/store/zxgscm13s6cj0mpc743pm5f3cp05vq12-driverConfiguration.json.drv
  /nix/store/kiwn2n40v13yynzn7hic5xddhn6f7gwq-nixos-test-driver-iets-cachetest.drv
  /nix/store/d2jwqpcwz3vj3y19sm86nnyphlcd0j08-container-test-run-iets-cachetest.drv