Update malachite to 0.11

[youknowone]

malachite-bigint 0.11.0 was published on 2026-08-28, while the workspace
pinned 0.10.0.

pymath requires malachite-bigint = "0" — every 0.x, deliberately, since
"malachite upgrades minor version a lot". A fresh resolve therefore picks 0.11
for pymath and leaves the workspace on 0.10, and cargo treats those as
incompatible, so both end up in the graph:

error[E0308]: mismatched types
   --> crates/stdlib/src/math.rs:110:45
    |
110 |   pymath::math::log_bigint(i.as_bigint(), base)
    |                            ^^^^^^^^^^^^^ expected `malachite_bigint::bigint::BigInt`, found `BigInt`
    |
note: there are multiple different versions of crate `malachite_bigint` in the dependency graph

The committed Cargo.lock hides this for the workspace itself. The example
projects carry no lockfile — example_projects/.gitignore has */Cargo.lock —
so they resolve fresh on every run, which is why Test example projects is the
only job that broke, and why it broke on a commit that touched none of this.

malachite-q and malachite-base move with malachite-bigint. Bumping
malachite-bigint on its own splits malachite-nz the same way and fails in
rustpython-common instead. With all three moved, no source change is needed.

Nothing changes in pymath: its "0" requirement covers 0.11, so both sides
unify there once the workspace does.

Tests

CI clippy for the workspace and for the wasm package, the workspace test
command, and both example projects — frozen_stdlib, the one that fails on
main, now builds and runs.

Summary by CodeRabbit

• Chores
  • Updated internal mathematical library components to newer versions for improved compatibility and maintenance.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

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Review profile: CHILL

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Run ID: 20e651da-7665-4ebf-b819-66ae924d1c03

📥 Commits

Reviewing files that changed from the base of the PR and between b0b4d2f and 8d95b4f.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (1)

• Cargo.toml

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📝 Walkthrough

Walkthrough

The workspace updates malachite-bigint, malachite-q, and malachite-base from version 0.10.0 to 0.11.0.

Changes

Malachite dependency update

Layer / File(s)	Summary
Update workspace dependency versions Cargo.toml	The workspace declarations for malachite-bigint, malachite-q, and malachite-base now use version 0.11.0.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to 8d95b

This localized dependency update aligns the workspace and lockfile on malachite 0.11; no actionable merge-blocking risk remains after normal checks and review.

Suggested reviewers: joshuamegnauth54, shaharnaveh

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely identifies the main change: updating the Malachite dependencies from version 0.10 to 0.11.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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