Issue compiling the library

[Uzaaft]

I'm having issues compiling the library while implementing the signal-rs library into my project. The library also fails to compile whenever I try to compile it at it's own.

Getting the error:

``` error[E0554] `#![feature]` may not be used on the stable release channel --> /Users/uzaaft/.cargo/registry/src/github.com-1ecc6299db9ec823/signalr_rs-0.1.4/src/lib.rs:1:1 | 1 | #![feature(try_trait)] | ^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to previous error For more information about this error, try `rustc --explain E0554`. error: could not compile `signalr_rs` To learn more, run the command again with --verbose. [Finished running. Exit status: 101] ```

Attempting to compile it with:

macOS Monterey beta
cargo 1.53.0 (4369396ce 2021-04-27)
rustc 1.53.0 (53cb7b09b 2021-06-17)
Do tell if more information is needed.

[Igosuki]

Features are only available in nightly, can you use the nightly channel ?

[Uzaaft]

Compiling with nightly fails with Error E0432. Error message:

Getting the error:

``` Compiling signalr_rs v0.1.4 error[E0432]: unresolved import `std::option::NoneError` --> /Users/uzaaft/.cargo/registry/src/github.com-1ecc6299db9ec823/signalr_rs-0.1.4/src/hub/client.rs:21:5 | 21 | use std::option::NoneError; | ^^^^^^^^^^^^^^^^^^^^^^ no `NoneError` in `option` error: aborting due to previous error For more information about this error, try `rustc --explain E0432`. error: could not compile `signalr_rs` To learn more, run the command again with --verbose. ```

--verbose did not return any useful information.

Using:
cargo 1.54.0-nightly (44456677b 2021-06-12)
rustc 1.55.0-nightly (406d4a9cc 2021-06-21)

[Igosuki]

I started using actix4 in all my projects and had a branch ready for this crate. I merged the actix4 branch in master let me know if that's good enough for you.

[Uzaaft]

Thank you! I'm able to compile the library now with the stable channel. Appreciate the help!

[Igosuki]

No worries, as soon as actix 4 is out of beta I will make a release. Let me know if there are any more changes you need.