this derivation will be built:
  /nix/store/rkydj88qrsczir7hdy8anwaiqn56ai8a-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/rkydj88qrsczir7hdy8anwaiqn56ai8a-bcachefs-module-7.0.0-39-generic.drv'...