these 5 derivations will be built:
  /nix/store/0cvqlw6kn0wicayfs2b9w914l32l40dj-nix-grpc-e2e.drv
  /nix/store/c0iqmphhgpr96ds60z5gg0j76xn4zhvh-test-script.drv
  /nix/store/yldn1nkycxcr78qfn82hkcrpkw4m2kqn-driverConfiguration.json.drv
  /nix/store/p0hlb302sqkgswi7m602ldpws5y8b022-nixos-test-driver-nix-grpc-store-acme-substituter.drv
  /nix/store/08f8al4ai7s6fm8x5n665d8awwrcv859-vm-test-run-nix-grpc-store-acme-substituter.drv