Support using custom toolchains
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A-builds
C-enhancement
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- Dominant language
- Rust
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- Avg merge
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Description
I tried using a local build of rust-lang/rust for testing, but rustwide gives an error while initializing:
2021/03/07 10:35:01 [INFO] rustwide::cmd: running `Command { std: "/home/joshua/docs.rs/.workspace/cargo-home/bin/rustup" "target" "list" "--installed" "--toolchain" "rustc2", kill_on_drop: false }`
Error: Building documentation failed
Caused by:
failed to read the list of installed targets for rustc2 with rustup
Caused by:
command failed: exit code: 1
$ "/home/joshua/docs.rs/.workspace/cargo-home/bin/rustup" "target" "list" "--installed" "--toolchain" "rustc2"
error: toolchain 'rustc2' does not support components
error: caused by: rustc2 is a custom toolchain
Not yet sure if this is a docs.rs bug or a rustwide bug - maybe the best solution is for rustwide to detect a custom toolchain and add a new error variant for that?
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the rustup target-list command shown in the report with the custom toolchain rustc2, then trace whether initialization is handled by docs.rs or rustwide. Determine the intended behavior for custom toolchains and verify that documentation builds either succeed or report a dedicated, actionable error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- build-system
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100