these 3 derivations will be built:
  /nix/store/3lqx8528xniifs948crc0xhxc7702ciy-treefmt.toml.drv
  /nix/store/cqdbkky5dwazv8a97yzxj84a7ac8mhbm-treefmt.drv
  /nix/store/yzpcm5v96z3wwik2lmxyq3zd7abj0fc0-inputDerivation-treefmt-check.drv