this derivation will be built:
  /nix/store/j39vbhf4vbgh7300k3id9kvabi1kjdpc-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/j39vbhf4vbgh7300k3id9kvabi1kjdpc-bcachefs-module-7.0.0-38-generic.drv'...