Enable full backtrace

[fkorotkov]

To include line numbers. Right now errors doesn't contain them:

Connection reset by peer (os error 54)

Thread 0
0   softnet                         0x100633cb0         softnet::proxy::Proxy::run
1   softnet                         0x1003f0d0c         softnet::main
2   std                             0x1003f13f4         std::sys_common::backtrace::__rust_begin_short_backtrace
3   std                             0x1003f140c         std::rt::lang_start::{{closure}}
4   std                             0x1006c2fc4         std::rt::lang_start_internal
5   <unknown>                       0x1003f13b8         _main

[edigaryev]

I think there's no difference between 1 and full both internally and in the docs.

The symbolication worked fine on local machine because the symbols were present in the build directory, and sofnet binary was referring to them.

To make this work on any machine, it seems that we have to upload the symbols (and additionally sources, to enrich the issue view even more in the Sentry UI), I've created #15 to address this.

[fkorotkov]

There is a mention of the full here. And even there is such BacktraceStyle. 🤔

[edigaryev]

There is a mention of the full here. And even there is such BacktraceStyle. 🤔

Indeed, but this feature doesn't seem to be stabilized yet (rust-lang/rust#93346) nor does it seem to influence anything in our case (we're only interested in Backtrace::enabled(), otherwise Backtrace::capture() wouldn't work).

Still, I think we can merge it anyway to be future-proof.