this derivation will be built:
  /nix/store/d7w56ja1p32xzkkm20ri1miv7da2zij6-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/d7w56ja1p32xzkkm20ri1miv7da2zij6-bcachefs-module-7.0.0-39-generic.drv'...