these 3 derivations will be built:
  /nix/store/mhjqypiw1m21zjnrmrpzdc74z79h53zl-treefmt.toml.drv
  /nix/store/2l7bln16ilsar2fz6b2vrb7q78fb6dr2-examples.drv
  /nix/store/sz4rc95yf63l15cp0sv7i8fz2kpcw7gz-test-examples.drv