these 2 derivations will be built:
  /nix/store/y54pqkw2p2sqxhkf79lz1bm8cvpykvp3-nix-unit-2.35.1.drv
  /nix/store/gbhlzhjcvzz84jqhkpmm1y5xndkj2jh6-nix-unit-check.drv