flutter_rust_bridge_codegen build-web errors, WASM can't compile

[Umenokin]

This question related to issue which is was not able to reopen: #2161

Error

user@MacBook my_app % flutter_rust_bridge_codegen build-web
> which wasm-pack (pwd: null, env: null)
/Users/user/.cargo/bin/wasm-pack
> cargo read-manifest (pwd: rust, env: null)
> wasm-pack build -t no-modules -d /Users/user/dev/my_app/web/pkg --no-typescript --out-name rust_lib_my_app --dev rust -- -Z build-std=std,panic_abort (pwd: null, env: {RUSTUP_TOOLCHAIN: nightly, RUSTFLAGS: -C target-feature=+atomics,+bulk-memory,+mutable-globals, CARGO_TERM_COLOR: always})
[INFO]: 🎯  Checking for the Wasm target...
[INFO]: 🌀  Compiling to Wasm...
error: "/Users/user/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/Cargo.lock" does not exist, unable to build with the standard library, try:
        rustup component add rust-src --toolchain nightly-aarch64-apple-darwin
Error: Compiling your crate to WebAssembly failed
Caused by: Compiling your crate to WebAssembly failed
Caused by: failed to execute `cargo build`: exited with exit status: 101
  full command: cd "rust" && "cargo" "build" "--lib" "--target" "wasm32-unknown-unknown" "-Z" "build-std=std,panic_abort"
Unhandled exception:
ProcessException: Bad exit code (1). If you want to see extra information, set FRB_DART_RUN_COMMAND_STDERR=1
  Command: wasm-pack build -t no-modules -d /Users/user/dev/my_app/web/pkg --no-typescript --out-name rust_lib_my_app --dev rust -- -Z build-std=std,panic_abort
#0      runCommand (package:flutter_rust_bridge/src/cli/run_command.dart:67:5)
<asynchronous suspension>
#1      _executeWasmPack (package:flutter_rust_bridge/src/cli/build_web/executor.dart:151:3)
<asynchronous suspension>
#2      executeBuildWeb (package:flutter_rust_bridge/src/cli/build_web/executor.dart:67:3)
<asynchronous suspension>
#3      BuildWebCommand.run (package:flutter_rust_bridge/src/cli/build_web/entrypoint.dart:18:5)
<asynchronous suspension>
#4      CommandRunner.runCommand (package:args/command_runner.dart:212:13)
<asynchronous suspension>
#5      main (file:///Users/user/.pub-cache/hosted/pub.dev/flutter_rust_bridge-2.2.0/bin/flutter_rust_bridge.dart:8:3)
<asynchronous suspension>
Error: Fail to execute command, please see logs above for details.

Toolchain

user@MacBook my_app % rustup default
nightly-aarch64-apple-darwin (default)

Details

I think this issue is related to Cargo issue, which was resolved yesterday but still not able to make a wasm build:
rust-lang/cargo#14370

I also tried reinstalling rust-std but it did not help as well as creating new project :

user@MacBook my_app % rustup component remove rust-src --toolchain nightly-aarch64-apple-darwin
info: removing component 'rust-src'
user@MacBook my_app % rustup component add rust-src --toolchain nightly-aarch64-apple-darwin
info: downloading component 'rust-src'
info: installing component 'rust-src'

[fzyzcjy]

Hi, I reopened that issue and feel free to ask there!

Same as what I replied before,

I do not have a reproducible environment, so cannot debug for this. If you like to test more, maybe clone frb repo and modify the ./frb_dart code related to building web to print out things etc to debug.

[wxitcode]

just update rust nightly

'''
$ rustup update nightly
'''

[Umenokin]

So now I was able to build a project with flutter_rust_bridge_codegen build-web
But how can I run it?

While flutter run works on macOS or iOS, I was never able to run it in Chrome.
flutter run > select chrome or flutter run -d chrome result in error:

[Umenokin]

I found working solution in one of here: https://scrapbox.io/hitech/Flutter%E3%81%A8Rust%E3%82%92%E7%B0%A1%E5%8D%98%E3%81%AB%E6%A7%8B%E7%AF%89%E3%81%99%E3%82%8B
flutter run --web-header=Cross-Origin-Opener-Policy=same-origin --web-header=Cross-Origin-Embedder-Policy=credentialless

However, every time you refresh the page, you have 50/50 of a chance it would work:

[fzyzcjy]

The quickstart doc of flutter_rust_bridge mentions to add those headers. For the new error, it may be related to standard Flutter, since it looks like loading something during bootstrap, and flutter_rust_bridge seems to has not been touched. Could you please check whether there are some Flutter discussions/solutions about this?