warning: unknown setting 'eval-cores'
warning: unknown setting 'lazy-trees'
this derivation will be built:
  /nix/store/sf32hg3x637n99hb8pqd4h5n4p9sfzcf-formatting.drv
building '/nix/store/sf32hg3x637n99hb8pqd4h5n4p9sfzcf-formatting.drv'