erreur nom

erreur

error: expected `::`, found `)`
  --> src/lib.rs:68:47
   |
68 | named!(entity_value <&[u8], (&str,<Vec<&str> >)>,
   |                                               ^

lib.rs

#[macro_use]
extern crate nom;

use nom::{IResult, space, newline, alphanumeric, eol};


use std::str;

named!(value <Vec<&str> >,
    alt!(
        do_parse!(
            opt!(space) >>
            char!('\n') >>
            val: many0!(
                do_parse!(
                    space >>
                    line: map_res!(
                        take_while!(call!(|c| c != '\n' as u8)),
                        str::from_utf8
                    ) >>
                    eol >>
                    (line)
                )
            ) >>
            (val)
        ) |
        do_parse!(
            opt!(space) >>
            val: map_res!(
                take_while!(call!(|c| c != '\n' as u8)),
                str::from_utf8
            ) >>
            eol >>
            (vec![val])
        )
    )
);

named!(entity_value <&[u8], (&str,<Vec<&str> >)>,
    do_parse!(
        key: map_res!(alphanumeric, str::from_utf8) >>
        opt!(space) >>
        char!('=') >>
        val: value >>
        (key, val)
    )
);