this derivation will be built:
  /nix/store/b21yfsx7zd0hw0nvbvw7cl12sxl30bsb-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/b21yfsx7zd0hw0nvbvw7cl12sxl30bsb-bcachefs-module-7.0.0-38-generic.drv'...