build.rs:20:35: 20:48 error: mismatched types [E0308]
build.rs:20 ::serde_codegen::register(&mut registry);
^~~~~
build.rs:20:35: 20:48 help: run rustc --explain E0308 to see a detailed explanation
build.rs:20:35: 20:48 note: expected type &mut syntex::Registry
build.rs:20:35: 20:48 note: found type &mut syntex::Registry
build.rs:20:35: 20:48 note: Perhaps two different versions of crate syntex are being used?
build.rs:20 ::serde_codegen::register(&mut registry);
^~~~~
error: aborting due to previous error
error: Could not compile textnonce.