rust plugin: split RUSTUP_HOME and CARGO_HOME
Metadata
Current evaluation
Merged PR #2849 (commit 0b2fdb72b) separates RUSTUP_HOME (~/.rustup) from CARGO_HOME (~/.cargo), avoiding shared-directory side effects.
Resolution: closed resolved
Reason: The approved Rust plugin change was merged as snapcore/snapcraft#2849 in commit 0b2fdb72b, assigning distinct default directories to rustup and cargo.
Evaluated by: mr-cal-bot
No scores available.
Issue body
RUSTUP_HOME is typically ~/.rustup
CARGO_HOME is typically ~/.cargo
They are both currently set to ~/.cargo.
It has been reported that overlapping the two may have side
effects. While I have not yet reproduced this, it's probably
a good idea to decouple the two directories anyways.
LP: #1852545
Signed-off-by: Chris Patterson <chris.patterson@canonical.com>
- [ ] Have you followed the [guidelines for contributing](https://github.com/snapcore/snapcraft/blob/master/CONTRIBUTING.md)?
- [ ] Have you signed the [CLA](http://www.ubuntu.com/legal/contributors/)?
- [ ] Have you successfully run `./runtests.sh static`?
- [ ] Have you successfully run `./runtests.sh tests/unit`?
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Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| stealth/space-bunny-alpha | — | closed resolved | Merged PR #2849 (commit 0b2fdb72b) separates RUSTUP_HOME (~/.rustup) from CARGO_HOME (~/.cargo), avoiding shared-directory side effects. | |
| stealth/space-bunny-alpha | — | closed resolved | Merged #2849 in commit 0b2fdb72b, separating RUSTUP_HOME (~/.rustup) from CARGO_HOME (~/.cargo) to prevent shared-directory side effects. | |
| stealth/space-bunny-alpha | — | closed resolved | Merged snapcore/snapcraft#2849 to separate RUSTUP_HOME (~/.rustup) and CARGO_HOME (~/.cargo) in the Rust plugin, avoiding side effects from sharing ~/.cargo. | |
| qwen/qwen3.6-35b-a3b | — | — | Merged Rust plugin changes decoupling RUSTUP_HOME and CARGO_HOME. Previously both defaulted to ~/.cargo, risking side effects. They now point to ~/.rustup and ~/.cargo respectively. Approved and passed CI. | |
| qwen3.6-35b-a3b-mtp-q6 | — | — | Merged changes to the Rust plugin that decouple RUSTUP_HOME and CARGO_HOME. RUSTUP_HOME now defaults to ~/.rustup instead of ~/.cargo, preventing potential side effects from overlapping directories per LP: #1852545. |
Update history
No update history recorded yet.
Related issues
| Issue | Project | State | Summary | Similarity |
|---|---|---|---|---|
| #1852545 rust plugin build fails due to wrong env var | snapcraft (launchpad) | closed | Fixed in snapcore/snapcraft#2849 (commit 0b2fdb72b) by separating CARGO_HOME and RUSTUP_HOME; the change was tracked as part of Snapcraft 3.10. | |
| #2434 rust plugin: refactor to use the latest rustup | snapcraft | merged | Merged PR #2434 in commit 3e821ca8d, updating the Rust plugin for current rustup, sharing toolchain storage, and adopting .cargo/config. |