the trait hyper::header::HeaderFormat is not implemented

[mmacedoeu]

Trying to compile with stable, beta or nightly gives me this error:

src/main.rs:84:56: 84:86 error: the trait `hyper::header::Header` is not implemented for the type `hyper::header::common::authorization::Authorization<hyper::header::common::authorization::Bearer>` [E0277]
src/main.rs:84         let auth_header = match request.origin.headers.get::<Authorization<Bearer>>() {
                                                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/main.rs:84:56: 84:86 help: run `rustc --explain E0277` to see a detailed explanation
src/main.rs:84:56: 84:86 error: the trait `hyper::header::HeaderFormat` is not implemented for the type `hyper::header::common::authorization::Authorization<hyper::header::common::authorization::Bearer>` [E0277]
src/main.rs:84         let auth_header = match request.origin.headers.get::<Authorization<Bearer>>() {
                                                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/main.rs:84:56: 84:86 help: run `rustc --explain E0277` to see a detailed explanation
error: aborting due to 2 previous errors
Could not compile `rust-users`.

[pwrdwnsys]

Same for me. I tried explicitly setting different versions of nickel and hyper in the Cargo.toml, but no change.

[shepmaster]

This question was cross-posted to Stack Overflow.