Updating Rust Toolchain

[xcthulhu]

Updating rust-toolchain to use nightly-2023-08-19

[obsessed-cake]

LGTM

[akorchyn]

Does a node work with new toolchain ?

[akorchyn]

paritytech/substrate#13636

[akorchyn]

we should test it first

[obsessed-cake]

$ git log -n 1
commit 54b64a0d5ec234f726c23b85ef41cf99f6876880 (HEAD -> bump-rust-toolchain, origin/bump-rust-toolchain)
Author: Matthew Doty <matt@w-d.org>
Date:   Sun Aug 20 12:42:16 2023 -0400

    Updating rust toolchain

$ cargo run -- --dev
     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
     Running `target/debug/ggxchain-node --dev`
2023-08-20 20:29:40 GGX chain node    
2023-08-20 20:29:40 ✌️  version 0.1.0-54b64a0d5ec    
2023-08-20 20:29:40 ❤️  by GGXChain <admin@ggxchain.io>, 2021-2023    
2023-08-20 20:29:40 📋 Chain specification: Development    
2023-08-20 20:29:40 🏷  Node name: neat-bike-9362    
2023-08-20 20:29:40 👤 Role: AUTHORITY    
2023-08-20 20:29:40 💾 Database: RocksDb at /tmp/substratewc8gIL/chains/dev/db/full    
2023-08-20 20:29:40 ⛓  Native runtime: ggxchain-node-7 (ggxchain-node-1.tx1.au1)    
2023-08-20 20:29:41 [0] 💸 generated 5 npos voters, 1 from validators and 4 nominators    
2023-08-20 20:29:41 [0] 💸 generated 1 npos targets    
Error: Service(Client(VersionInvalid("cannot deserialize module: UnknownOpcode(192)")))
2023-08-20 20:29:42 Cannot create a runtime error=Other("cannot deserialize module: UnknownOpcode(192)")

[akorchyn]

As the above issue is confirmed, we can't migrate until the proper fix is created for the substrate. So, let's move to draft it and keep it for latter.

[xcthulhu]

Looks like we need to update substrate to incorporate this fix: paritytech/substrate#13804

[akorchyn]

it's not easy task as we have other substrate deps. Also, we can live with older version for a while, it's not crucial.

[uchu]

I think we need to work on these updates to be able to upgrade rust toolchain

[akorchyn]

Absorbed by #187