warning: unknown setting 'eval-cores'
warning: unknown setting 'lazy-trees'
these 2 derivations will be built:
  /nix/store/mv8vivric7g1z9qp4z2h9c44may7zfj5-busker-dc136f7.drv
  /nix/store/0f8nzakxqrbrj8q25vd5mv6gjcfzn4va-docs-site-2026-08-07.drv
error: hash mismatch in fixed-output derivation '/nix/store/mv8vivric7g1z9qp4z2h9c44may7zfj5-busker-dc136f7.drv':
         specified: sha256-z6kSW/j2L48v+3dtd9WnNHQL6otY8o3vYuZQXpE1Zak=
            got:    sha256-QtUYcwgasVbmgLC/YAb7LUbn1kIB5S+K/XvQjinEch0=
error: Cannot build '/nix/store/0f8nzakxqrbrj8q25vd5mv6gjcfzn4va-docs-site-2026-08-07.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/h5mhh4lamya6v5hyh938h23np6qykzqs-docs-site-2026-08-07