The problem is with the function `second` that I get from the other crate. If I replace the `second` function with my own implementation it works. But for the `

The problem is with the function `second` that I get from the other crate. If I replace the `second` function with my own implementation it works. But for the `second` implementation from tool.rs to work, Rust needs better higher ranked lifetime support. It would also work with a closure, but I wrote my code this way to avoid closures in the first place (I was going for point-free style). I basically just have to write my own function: https://bitbucket.org/iopq/fizzbuzz-in-rust/src/58bfa4c58c803b04451ae60fe06da4450aef9658/src/lib.rs?at=master&fileviewer=file-view-default#lib.rs-66:68 https://bitbucket.org/iopq/fizzbuzz-in-rust/src/58bfa4c58c80... this compiles, but it seems kind of pointless since I can only use this particular function in my case (because of the extra levels of references) if I could use the tool.rs version, it would automatically generate all the implementations I need using macros