Can you kindly have a look at that when your time allows?

https://github.com/Dajamante/Rustbook/blob/c81d0d2d33431eb7af810dfbd22145a66c95b08d/threads_channels/src/main.rs#L53

My second receiver channels does not receive any message. The compiler gives me a faire warning:

88 | /         child_rx2
89 | |             .into_iter()
90 | |             .map(|m| info!("Message dropped {}", m));
   | |_____________________________________________________^
   |
   = note: `#[warn(unused_must_use)]` on by default
   = note: iterators are lazy and do nothing unless consumed

Thank you a lot in advance!

Dear Nathan,

Is it possible to change the From impl into an Into implementation? (impl Into<Cake> for Party)? You said that From/Into were mirrors of each other. Would that even make sense?

impl From<Party> for Cake {
    fn from(party: Party) -> Self {
        party.cake
    }
}
smell_cake(party);

pub fn smell_cake<T: Into<Cake>>(something: T) {
    println!("Hmm...something smells like a {:?} cake!", something.into());
}

Hi,

There is formatting issue with code listing in the class handout slides (pdf). The line spacing between code lines seems to be too large. A long code listing can thus be truncated and becomes incomplete. Please see the following example excerpt:

It will be very much appreciated if the formatting issue can be fixed.

Many thanks!

ultimate_rust2/exercise/errors

Based on the description:

        // Challenge: Change main() so that it returns a Result, and instead of handling the error   
        // that play_time returns, use the try operator to only handle the success condition. How   
        // does the output of the program change?   

the following change is made:

fn main() -> Result<()> {   
    ...   
    for dolphin in &dolphins {   
        let responses = play_time(dolphin)?;   
        println!("{} did a FABULOUS PERFORMANCE!", dolphin.name);   
        for response in responses {   
            println!("  {}", response);   
        }   
    }   
    Ok(())   
}   

It changes the output of the program to: Error: The dolphin's name is too long and annoying to say

Did I understand the challenge correctly and was it the correct solution? Or anything should be done to explicitly ignore the error Result returned by play_time() and yet to consume the Ok Result? Please advise.