struct S<'a, R: 'a> {
    iter: std::io::Lines<'a, std::io::buffered::BufferedReader<R>>
}

pub fn read<'a, A, R: std::io::Reader>(reader: R) -> S<'a, R> {
    let mut br = std::io::BufferedReader::new(reader);
    S { iter: br.lines() }
}

#[test]
fn test() {
    let mut reader = std::io::BufReader::new("test".as_bytes());
    read(reader);
}

/home/nicholasbishop/rust-so-test-00/src/lib.rs:11:30: 11:66 error: struct `BufferedReader` is private
/home/nicholasbishop/rust-so-test-00/src/lib.rs:11     iter: std::io::Lines<'a, std::io::buffered::BufferedReader<R>>
                                                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error: aborting due to previous error
Build failed, waiting for other jobs to finish...
/home/nicholasbishop/rust-so-test-00/src/lib.rs:22:5: 22:9 error: unable to infer enough type information about `_`; type annotations required
/home/nicholasbishop/rust-so-test-00/src/lib.rs:22     read(reader);
                                                   ^~~~