this derivation will be built:
  /nix/store/mv64216a4jafjp49as6jdd89rx14hnpc-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/mv64216a4jafjp49as6jdd89rx14hnpc-bcachefs-module-7.0.0-34-generic.drv'...