these 3 derivations will be built:
  /nix/store/13405y3nxdqs2ki6ajkrzrzyly29fxxy-treefmt.toml.drv
  /nix/store/fa7im139s8zqsngndv1nr7dc0a7a3wd8-treefmt.drv
  /nix/store/8x0aphhzmiz3cgg1ravpa7y5hvwpnfn8-treefmt-check.drv