these 4 derivations will be built:
  /nix/store/xcilfmvas39ih0j8prlzhppfah0fxz8i-test-script.drv
  /nix/store/2mdmggfazrx4c69pic86nzbqsn0gc11k-driverConfiguration.json.drv
  /nix/store/ka3a03md95qhrn13q2n6694zr8a36p7p-nixos-test-driver-iets-cachetest.drv
  /nix/store/xjm4f3x4ry8d02mg0jak4l32849rnqa0-container-test-run-iets-cachetest.drv