these 3 derivations will be built:
  /nix/store/6phgg1dzq24zfw6jba538ms7j1q77214-treefmt.toml.drv
  /nix/store/kgwq9y1dwr6b0ygnaiqgvcg9fbhklwcj-treefmt.drv
  /nix/store/xfy6dnwwmdhrflypi0kib21c06fpgfqr-check-formatter.drv