> First, in Listing 16-6, we’ll create a channel but not do anything with it.
Note that this won’t compile yet because Rust can’t tell what type of values we
want to send over the channel.

That was not true, however, since the code compiled due to hidden line.
This change makes the code not compile by removing it.

in light of https://blog.rust-lang.org/2019/04/26/Mozilla-IRC-Sunset-and-the-Rust-Channel.html

Update install instructions for VS 2019

This seems like a typo to me :
...similar to the concept      duck typing in dynamically...
...similar to the concept *of* duck typing in dynamically...

The compiler will call `into_iter()` on the values.

…ally has an opposite meaning

Fixes rust-lang#1964

To keep the wording consistent with the first paragraph. It's a little bit confusing to use the word test here since it can be mistaken as a test function.

rust-lang/rust#28237 - this is now a warning on Nightly.

Fixes rust-lang#1757

OBE

…olta

…ileira