this derivation will be built:
  /nix/store/v68vc552w327m637rggr24gg7incnd65-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/v68vc552w327m637rggr24gg7incnd65-bcachefs-module-7.0.0-30-generic.drv'...