it doesn't work in my program: https://bitbucket.org/iopq/fizzbuzz-in-rust/src/bf4968973d73137f0dfd07205d599bed30a788fa/src/lib.rs?at=master&fileviewer=file-vi

it doesn't work in my program: https://bitbucket.org/iopq/fizzbuzz-in-rust/src/bf4968973d73137f0dfd07205d599bed30a788fa/src/lib.rs?at=master&fileviewer=file-view-default https://bitbucket.org/iopq/fizzbuzz-in-rust/src/bf4968973d73... it gives an error when I use a generic `second` method from tool.rs