these 3 derivations will be built:
  /nix/store/nkprnjjpqbrwfsq6b708pwchwwhhvcq7-treefmt.toml.drv
  /nix/store/w2xm0mvz1awihx3h24k304zghk76qx1j-treefmt.drv
  /nix/store/1pcgynp62r2s59mj7bwldmm93axmnciy-treefmt-check.drv