Code example in std::net::lookup_host is not working

[achanda]

Th example here: https://doc.rust-lang.org/std/net/fn.lookup_host.html shows

<anon>:2:1: 2:18 error: an external crate named `std` has already been imported into this module [E0259]
<anon>:2 extern crate std;
         ^~~~~~~~~~~~~~~~~
error: aborting due to previous error
playpen: application terminated with error code 101

[steveklabnik]

We need an explicit main here, I think

[achanda]

@steveklabnik when I click on the codepen link, I do see an explicit main. However, the function foo was not being called.

[steveklabnik]

Right, but I think it does the wrong thing, because that main is generated by Rustdoc.

It's only a theory, I could be wrong

[steveklabnik]

Oh! No, this is #24597