rust-lang / rust-lang/rustup

Suggest another toolchain when removing a component/target unavailable to the current toolchain

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#4,164 2 comments 1 reaction 0 assignees View on GitHub

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enhancement
Dominant language
Rust
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Forks
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Avg merge
22h 40m
Merged PRs (30d)
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Description

Problem you are trying to solve
  1. rustup update fails (unrelated to issue)
    Image
  2. rustup target remove wasm32-wasi fails
    Image
  3. rustup +target remove wasm32-wasi succeeds, as the default toolchain was nightly as specified in .rustup/settings.toml
Solution you'd like

Rustup could search and suggest targets on other versions when the default does not have the target

Notes

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  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 listed rustup commands, especially target removal with the default nightly toolchain from .rustup/settings.toml. Determine the expected suggestion when the target is unavailable to the current toolchain, then verify that another suitable toolchain is suggested while the unrelated update failure remains unchanged.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cli, tooling
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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