rust-lang / rust-lang/rust-analyzer

Frontmatter and cargo script support

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#20,558 6 comments 0 reactions 0 assignees View on GitHub

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C-feature
Dominant language
Rust
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Description

Currently this code which uses nightly -Z script cargo feature is not accepted:

#!/usr/bin/env cargo
---cargo
package.edition = "2024"
[dependencies]

---

fn main() {
    println!("Hello, world!");
    println!("Welcome to PackHub!");
}

Cargo invocation:

cargo +nightly -Zscript script.rs
Image

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the example with cargo +nightly -Zscript script.rs and inspect how rust-analyzer handles the shown Rust source and its frontmatter. Done means the example using #!/usr/bin/env cargo, the ---cargo section, and Rust 2024 edition is accepted without the current error.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
tooling
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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