this derivation will be built:
  /nix/store/0h87xcl34f629mv19cm7gcrqk5zd65jw-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/0h87xcl34f629mv19cm7gcrqk5zd65jw-bcachefs-module-7.0.0-39-generic.drv'...