these 6 derivations will be built:
  /nix/store/958c2h7sq6nppvpnblfw40lxhb0d05rm-iets-0.1.0.drv
  /nix/store/4dacsf4bj31zpkbiwj274n9gli33wkp0-closure-info.drv
  /nix/store/aas9ckphkdb43bs3v0d4jnn5pbzpm4rc-test-script.drv
  /nix/store/zazb92vbk27jbrjq7f5dxx643v1vbxg6-driverConfiguration.json.drv
  /nix/store/49qbc282f6m2vkjsd6hjcgk7kw5397ad-nixos-test-driver-iets-cachetest.drv
  /nix/store/lpyhps75g3yp1p52qykvkxs4aqzwvqra-container-test-run-iets-cachetest.drv