these 3 derivations will be built:
  /nix/store/paakqzf3s0kqh068wsh9ghj1za3czwgi-treefmt.toml.drv
  /nix/store/g4znnylvm397h0iss3y7393r30ws4f56-treefmt.drv
  /nix/store/35fx8lkymby4ygsdbv3s9d2rxapiy56y-treefmt-check.drv