this derivation will be built:
  /nix/store/7b5jz9hng4v1gcyag0bkg0kafaxsaigr-nix-shell.drv
these 5 paths will be fetched (0.0 KiB download, 4.4 KiB unpacked):
  /nix/store/wdhy903y8sa9ys4g9m6lrp344hvxgvbk-apply
  /nix/store/byr8nrlz6pq3ggw9qijqhacmxvvl1ikp-destroy
  /nix/store/iw02kjpc5y1485qpdkfpvv8xdvhsz72n-init
  /nix/store/a7gb0jdvrff6p6f5dfa517hfbw6gc625-plan
  /nix/store/qxr7n18mc9p7yjsyldkxqvy6yfwcyd2q-tofu