this derivation will be built:
  /nix/store/4h7mkhnh9hjsj5qkimdqni102vwlzj9k-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/4h7mkhnh9hjsj5qkimdqni102vwlzj9k-bcachefs-module-7.0.0-38-generic.drv'...