these 4 derivations will be built:
  /nix/store/mcbrc20wcjdnk758c2df8fj2rw8k57gc-nix-conformance-oracles.drv
  /nix/store/5qznc6pr7xkgxl8bai1kaglh6fry8i79-nix-conformance-adapter.drv
  /nix/store/7xhwfyrqsxs010dw5hj4qfpjja61sgsg-nix-conformance.drv
  /nix/store/158w4dw8c7qksfgllf9hq71sf3h7g3da-nix-conformance-reference.drv