gnirehtet relay will IO error if binary built with Rust 1.64.0+

[cho-m]

In Homebrew, we currently need to rebuild gnirehtet due to an issue with our Linux pre-built binary, but all recent rebuild attempts result in a binary that doesn't work correctly.

Doing some debugging locally, I noticed that the binary built with Rust 1.64.0 or 1.65.0 will error:

❯ gnirehtet relay
2022-12-01 18:27:56.744 INFO Main: Starting relay server on port 31416...
2022-12-01 18:27:56.745 ERROR Main: Execution error: IO error: Address family not supported by protocol family (os error 47)

Experimenting with a few different versions of Rust, I found that the last version that didn't error was 1.63.0:

❯ gnirehtet relay
2022-12-01 18:34:53.803 INFO Main: Starting relay server on port 31416...
2022-12-01 18:34:53.804 INFO Relay: Relay server started

I assume gnirehtet is not compatible with changes introduced with new Rust versions.

[quantenzitrone]

i have this on NixOS too
works with rust 1.60 (gnirehted from nixos-22.05)
doesn't work with rust 1.65 (from unstable)

[rom1v]

I can reproduce:

2022-12-26 14:13:55.287 ERROR Main: Execution error: IO error: Invalid argument (os error 22)

On this line:

gnirehtet/relay-rust/src/relay/tunnel_server.rs

Line 67 in 9ad9bc8

let server = TcpListener::bind(&addr)?;

        let localhost = Ipv4Addr::new(127, 0, 0, 1).into();
        let addr = SocketAddr::new(localhost, port);
        let server = TcpListener::bind(&addr)?;

This is not expected to fail, a breaking change probably occurred in Rust 1.64.

To be investigated.

[rom1v]

Please confirm that it works with #478.

[chenrui333]

I can confirm it builds/runs fine with #478, tested out in my local against rust 1.66.0.