these 3 derivations will be built:
  /nix/store/xwmam6v1j0sgr4czv2sz0bf2l132c5yh-treefmt.toml.drv
  /nix/store/8mzbssxkh1jh354jg8czarynpdabnvqh-treefmt.drv
  /nix/store/nn69rdyvqgn3zi31gx4xa4879zdfxqif-treefmt-check.drv