these 6 derivations will be built:
  /nix/store/sw27386zmarxpx3v4vppnmmnhwyfxb69-iets-0.1.0.drv
  /nix/store/rl3dp8lyc3i54flz87k9bpywmb5dijfr-closure-info.drv
  /nix/store/csnk4gw9hbdb5gqzsmwc3f58b2qdwpj7-test-script.drv
  /nix/store/nfi324dd7mi1dpaq7kbxljfijz5ywc5q-driverConfiguration.json.drv
  /nix/store/cl6dfw1dwzhcl3jfim0xqr144kns9hxm-nixos-test-driver-iets-cachetest.drv
  /nix/store/lbwqnka0rs22fimbf1lbk6c3rlxdiir8-container-test-run-iets-cachetest.drv