gistfile1.txt

   Compiling rust-scraper v0.1.0 (file:///home/tom/Desktop/rust-scraper)                                                                                                                                                                                                                                                      
warning: unused import: `cssparser::ParseError`
 --> src/main.rs:9:5
  |
9 | use cssparser::ParseError;
  |     ^^^^^^^^^^^^^^^^^^^^^
  |
  = note: #[warn(unused_imports)] on by default

error[E0277]: the trait bound `cssparser::ParseError<'_, selectors::parser::SelectorParseErrorKind<'_>>: std::error::Error` is not satisfied
  --> src/main.rs:29:20
   |
29 |     let selector = Selector::parse("a")?;
   |                    ^^^^^^^^^^^^^^^^^^^^^ the trait `std::error::Error` is not implemented for `cssparser::ParseError<'_, selectors::parser::SelectorParseErrorKind<'_>>`
   |
   = note: required because of the requirements on the impl of `std::convert::From<cssparser::ParseError<'_, selectors::parser::SelectorParseErrorKind<'_>>>` for `std::boxed::Box<dyn std::error::Error>`
   = note: required by `std::convert::From::from`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
error: Could not compile `rust-scraper`.

To learn more, run the command again with --verbose.

scraper.rs

extern crate reqwest;
extern crate scraper;
extern crate cssparser;
extern crate selectors;

use scraper::Html;
use scraper::Selector;

use cssparser::ParseError;

#[derive(Debug)]
struct MyParseError<'i>(cssparser::ParseError<'i, selectors::parser::SelectorParseErrorKind<'i>>);

impl<'i> std::error::Error for MyParseError<'i> {}

impl<'i> std::fmt::Display for MyParseError<'i> {
    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
        write!(f, "ParseError")
    }
}

fn main() -> Result<(), Box<std::error::Error>> {
    let html = reqwest::get("https://hg.mozilla.org/integration/mozilla-inbound/")?.text()?;

    // println!("html: {:?}", body);

    let document = Html::parse_document(&html);

    let selector = Selector::parse("a")?;

    for a in document.select(&selector) {
        println!("{} {}", a.value().attr("href").unwrap(), a.text().next().unwrap());
    }

    Ok(())
}