Bump proc-macro2 to unbreak nightly build

[Gordon-F]

More info:
rust-lang/rust#113152
dtolnay/proc-macro2#391

[epage]

Is there a reason you are using this rather than cargo +nightly -Zscript? I've switched to that and use a nargo ("nightly" + "cargo") wrapper script to make it nicer for my #!. Doing this will also get us more feedback on what will actually be widely used.

[Gordon-F]

@epage I don't use cargo-script-mvs. But I'm trying to make another tool based on it. I need a tool to compile one .rs file into cdylib for wasm target. I can use rustc directly, but I also need to work with dependencies somehow.

Unfortunately, currently in cargo we need to create a new crate for every wasm lib. But if you build wasm based script system for a game engine, it's not user friendly to create a new cargo package for every small entity (player, enemy, etc.).

[epage]

Might be worth commenting on the tracking issue with your use case and what you'd need out of native "cargo script" support to get it