these 3 derivations will be built:
  /nix/store/9n9037v8skgfhp6116idkd5z6j1w9x3i-treefmt.toml.drv
  /nix/store/l9c7dymj49hvzrc8z3x02a5s9wfhfmc8-treefmt.drv
  /nix/store/ap1k7crap08vkly2ld19la699qz9av9f-treefmt-check.drv