this derivation will be built:
  /nix/store/89hnk9ma7sxi7kl1gbpgywacjwxik8mj-nix-shell.drv
this path will be fetched (175.5 MiB download, 556.3 MiB unpacked):
  /nix/store/hkk3zb3a9sa6bqhbplsdnhn0q0jm00wf-rustfs-1.0.4