these 4 derivations will be built:
  /nix/store/yi301qbpfkr01myjn5dyrfkww9kj2z1z-clan-cli-source.drv
  /nix/store/0gbysgk6z9j4xpkd72pa9ky6cq2l219y-clan-cli.drv
  /nix/store/wis4yjfgm9kyvhcnxcbyk8wk99bpzlf3-tofu.drv
  /nix/store/pxfi1ajczfzcwkg25yizlvkv6fkifs1n-cache-new.drv