Problem: any in rs node clone fails to compile

[sjmackenzie]

Steps to reproduce

• run $ nix-build --argstr node test_xor

expected behaviour

• the code compiles cleanly

actual behaviour

Building src/lib.rs (msg_clone)
error[E0412]: cannot find type `any` in this scope
 --> src/lib.rs:8:18
  |
8 |     input(input: any),
  |                  ^^^ did you mean `Any`?

error: aborting due to previous error

For more information about this error, try `rustc --explain E0412`.
builder for '/nix/store/hlxs3hs1iblm29963ypqhchpqin7wcmf-rust_msg_clone-0.0.0.drv' failed with exit code 101
cannot build derivation '/nix/store/fpa4d8pw7k6yamlilh8c0ycjxgmrrd39-maths_boolean_xor.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/2gdi2v96qdkc390jviiqsp7n6g8p0wsd-test_xor.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/lha1bckcrjfjc3561fyqdazva8hdmbvc-test_xor.drv': 1 dependencies couldn't be built
error: build of '/nix/store/lha1bckcrjfjc3561fyqdazva8hdmbvc-test_xor.drv' failed