these 6 derivations will be built:
  /nix/store/4n9jsxvbar7vbqsw08r4q3nzrjknkln2-iets-0.1.0.drv
  /nix/store/siskfn4f7jhbcpziz8ca2wjv6awzp9d1-closure-info.drv
  /nix/store/9v5kghryvzqw8rbzam2ybsz3yfbq5my8-test-script.drv
  /nix/store/rc2y3v5jjj73g05qbqk4qpyi0cw43yq7-driverConfiguration.json.drv
  /nix/store/5i6hwxhwmsx6h4j6sflwjhkixhw440f8-nixos-test-driver-iets-prefetch-e2e.drv
  /nix/store/0qi2pab72w3wi3g5rya38r2vlp87hx4i-container-test-run-iets-prefetch-e2e.drv