Please the compiler by suppling type hints.

[HenkKalkwater]

First of all: Rust is not a language I have a good understanding of, although I do have some background in C++ and its memory management. Please request changes when I did something ugly in Rust, because I most certainly did.

I accidentally made an issue on the project this project was forked on about this (sile#2), but in short, I noticed when compiling this project, I got the following error on rustc 1.49:

error[E0282]: type annotations needed
   --> /build/mumblewebproxy-vendor.tar.gz/rtp/src/rfc3711.rs:476:19
    |
475 |         let iv = iv ^ (BigUint::from(1_u8) << (context.session_encr_key.len() * 8));
    |             -- consider giving `iv` a type
476 |         let iv = &iv.to_bytes_be()[1..context.session_encr_key.len() + 1];
    |                   ^^ cannot infer type
    |
    = note: type must be known at this point

error[E0282]: type annotations needed
   --> /build/mumblewebproxy-vendor.tar.gz/rtp/src/rfc3711.rs:512:19
    |
511 |         let iv = iv ^ (BigUint::from(1_u8) << (context.session_encr_key.len() * 8));
    |             -- consider giving `iv` a type
512 |         let iv = &iv.to_bytes_be()[1..context.session_encr_key.len() + 1];
    |                   ^^ cannot infer type
    |
    = note: type must be known at this point

error: aborting due to 2 previous errors

This pull request fixes this compile error. I've run the unit tests as well (with cargo test) and they still seem to work.

[HenkKalkwater]

It may be caused by rust-lang/rust#81317. It also seems like @Skgland made a more elegant workaround in Skgland@83eb4dd, but as far as I've seen, he has made no pull request yet.

[Skgland]

It may be caused by rust-lang/rust#81317. It also seems like @Skgland made a more elegant workaround in Skgland@83eb4dd, but as far as I've seen, he has made no pull request yet.

Yeah, the mentioned Issue is exactly this, I opened that Issue as I noticed that this stopped to compile as I upgraded my rustc.

I have now also opened #4 with my workaround.

[HenkKalkwater]

In that case, please merge #4 over this one. Anyways, I've learned some Rust while trying to fix this, so I don't feel like I wasted my effort :)