this derivation will be built:
  /nix/store/66px7mkqgjlw9dbwi23q7qbcwyl51sxq-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/66px7mkqgjlw9dbwi23q7qbcwyl51sxq-bcachefs-module-7.0.0-38-generic.drv'...