this derivation will be built:
  /nix/store/pmd61g3n7b44z1pq35iw6dywjg44iyg0-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/pmd61g3n7b44z1pq35iw6dywjg44iyg0-bcachefs-module-7.0.0-39-generic.drv'...