these 12 derivations will be built:
  /nix/store/nh5rsnfrcd35z8hn6gl3yi3nhlxl9a5p-tribuchet-e2e-0.1.0.drv
  /nix/store/g3060scvy0qm1bs4972i7i6fnd2vl1mn-string-references.drv
  /nix/store/06l4c3c8251ddd0mhh7w0apg75yjash2-closure-info.drv
  /nix/store/ssn9waidm05qq6wqzqfncsp96lsqzx46-closure-info.drv
  /nix/store/jrl893301h76py97nkgr5v9n1ad4mj11-run-nixos-vm.drv
  /nix/store/18qvc052a0dird2phaf22vz9appckiyx-nixos-vm.drv
  /nix/store/lkmzqsjxx88j8z4cy35fbcpvmri9941l-run-nixos-vm.drv
  /nix/store/s8h1j692i23y969pi37gv2bggfwnynrw-nixos-vm.drv
  /nix/store/v9sp3923qvx68faqf6r36n3sswj5jxzz-test-script.drv
  /nix/store/banf90nwlf6ph4zxw8g8llbjzyhwm5b8-driverConfiguration.json.drv
  /nix/store/d0hvhmd3fd0wcm8fnzh3msya95k2a90j-nixos-test-driver-tribuchet-nspawn.drv
  /nix/store/3hazmwwb7mzlsgpfn398cm2w9xbynayl-vm-test-run-tribuchet-nspawn.drv