these 3 derivations will be built:
  /nix/store/5sgax39sp8hagww1gvdj4xiishv9kybb-treefmt.toml.drv
  /nix/store/w02zl6phqci2anq04824ifkas1xv3xy0-treefmt.drv
  /nix/store/0rkpcli5hp368dxh88sa0pm98sbs614m-treefmt-check.drv