these 4 derivations will be built:
  /nix/store/087iw62vr709rb7i7x0gbyiw008b4589-nil.drv
  /nix/store/xdh6sfjhm0a4b782mknz71l3mf527vb8-treefmt.toml.drv
  /nix/store/v2dgp4p0b5kqpaxxnnbg34978qrsrf7j-treefmt.drv
  /nix/store/qf47db9ww75b8awmg2srhzd78im9rj21-treefmt-check.drv