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error[E0658]: using an imported function as entry point main is experimental #450

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yamt opened this issue Jul 17, 2024 · 1 comment · May be fixed by #452
Open

error[E0658]: using an imported function as entry point main is experimental #450

yamt opened this issue Jul 17, 2024 · 1 comment · May be fixed by #452

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@yamt
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yamt commented Jul 17, 2024

i saw the following error while doing "cmake --build build/toolchain --target dist".
i guess rust/cargo requirements should be documented in https://github.com/WebAssembly/wasi-sdk?tab=readme-ov-file#requirements.

error[E0658]: using an imported function as entry point `main` is experimental
 --> /Users/yamamoto/.cargo/registry/src/index.crates.io-6f17d22bba15001f/wasm-component-ld-0.5.5/src/main.rs:1:5
  |
1 | use wasm_component_ld::main;
  |     ^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: see issue #28937 <https://github.com/rust-lang/rust/issues/28937> for more information

For more information about this error, try `rustc --explain E0658`.
error: could not compile `wasm-component-ld` (bin "wasm-component-ld") due to 1 previous error
error: failed to compile `wasm-component-ld v0.5.5`, intermediate artifacts can be found at `/var/folders/74/hw1sphgx0lv63q6pq_n5grw00000gn/T/cargo-installJIGQGF`.
To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.
ninja: build stopped: subcommand failed.
@alexcrichton
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Yes this is a toolchain error where the Rust toolchain you're using is too old. Once bytecodealliance/wasm-component-ld#36 gets published you'll get a better first-class error message when the toolchain is too old.

yamt added a commit to yamt/wasi-sdk that referenced this issue Jul 18, 2024
@yamt
README.md: document rust requirement
0307935 
Fixes WebAssembly#450
@yamt yamt linked a pull request Jul 18, 2024 that will close this issue
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yamt added a commit to yamt/wasi-sdk that referenced this issue Aug 29, 2024
@yamt
README.md: drop "latest" from rust requirement
16ef5d1 
it seems that the build issue mentioned in
WebAssembly#450
has been fixed by wasm-component-ld 0.5.6.
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README.md: document rust requirement yamt/wasi-sdk
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@alexcrichton @yamt