Update Rust crate rand to v0.9.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
rand (source)	dependencies	minor	=0.8.5 -> =0.9.0

---

Release Notes

rust-random/rand (rand)

v0.9.0

Compare Source

Security and unsafe

• Policy: "rand is not a crypto library" (#​1514)
• Remove fork-protection from ReseedingRng and ThreadRng. Instead, it is recommended to call ThreadRng::reseed on fork. (#​1379)
• Use zerocopy to replace some unsafe code (#​1349, #​1393, #​1446, #​1502)

Dependencies

• Bump the MSRV to 1.63.0 (#​1207, #​1246, #​1269, #​1341, #​1416, #​1536); note that 1.60.0 may work for dependents when using --ignore-rust-version
• Update to rand_core v0.9.0 (#​1558)

Features

• Support std feature without getrandom or rand_chacha (#​1354)
• Enable feature small_rng by default (#​1455)
• Remove implicit feature rand_chacha; use std_rng instead. (#​1473)
• Rename feature serde1 to serde (#​1477)
• Rename feature getrandom to os_rng (#​1537)
• Add feature thread_rng (#​1547)

API changes: rand_core traits

• Add fn RngCore::read_adapter implementing std::io::Read (#​1267)
• Add trait CryptoBlockRng: BlockRngCore; make trait CryptoRng: RngCore (#​1273)
• Add traits TryRngCore, TryCryptoRng (#​1424, #​1499)
• Rename fn SeedableRng::from_rng -> try_from_rng and add infallible variant fn from_rng (#​1424)
• Rename fn SeedableRng::from_entropy -> from_os_rng and add fallible variant fn try_from_os_rng (#​1424)
• Add bounds Clone and AsRef to associated type SeedableRng::Seed (#​1491)

API changes: Rng trait and top-level fns

• Rename fn rand::thread_rng() to rand::rng() and remove from the prelude (#​1506)
• Remove fn rand::random() from the prelude (#​1506)
• Add top-level fns random_iter, random_range, random_bool, random_ratio, fill (#​1488)
• Re-introduce fn Rng::gen_iter as random_iter (#​1305, #​1500)
• Rename fn Rng::gen to random to avoid conflict with the new gen keyword in Rust 2024 (#​1438)
• Rename fns Rng::gen_range to random_range, gen_bool to random_bool, gen_ratio to random_ratio (#​1505)
• Annotate panicking methods with #[track_caller] (#​1442, #​1447)

API changes: RNGs

• Fix <SmallRng as SeedableRng>::Seed size to 256 bits (#​1455)
• Remove first parameter (rng) of ReseedingRng::new (#​1533)

API changes: Sequences

• Split trait SliceRandom into IndexedRandom, IndexedMutRandom, SliceRandom (#​1382)
• Add IndexedRandom::choose_multiple_array, index::sample_array (#​1453, #​1469)

API changes: Distributions: renames

• Rename module rand::distributions to rand::distr (#​1470)
• Rename distribution Standard to StandardUniform (#​1526)
• Move distr::Slice -> distr::slice::Choose, distr::EmptySlice -> distr::slice::Empty (#​1548)
• Rename trait distr::DistString -> distr::SampleString (#​1548)
• Rename distr::DistIter -> distr::Iter, distr::DistMap -> distr::Map (#​1548)

API changes: Distributions

• Relax Sized bound on Distribution<T> for &D (#​1278)
• Remove impl of Distribution<Option<T>> for StandardUniform (#​1526)
• Let distribution StandardUniform support all NonZero* types (#​1332)
• Fns {Uniform, UniformSampler}::{new, new_inclusive} return a Result (instead of potentially panicking) (#​1229)
• Distribution Uniform implements TryFrom instead of From for ranges (#​1229)
• Add UniformUsize (#​1487)
• Remove support for generating isize and usize values with StandardUniform, Uniform (except via UniformUsize) and Fill and usage as a WeightedAliasIndex weight (#​1487)
• Add impl DistString for distributions Slice<char> and Uniform<char> (#​1315)
• Add fn Slice::num_choices (#​1402)
• Add fn p() for distribution Bernoulli to access probability (#​1481)

API changes: Weighted distributions

• Add pub module rand::distr::weighted, moving WeightedIndex there (#​1548)
• Add trait weighted::Weight, allowing WeightedIndex to trap overflow (#​1353)
• Add fns weight, weights, total_weight to distribution WeightedIndex (#​1420)
• Rename enum WeightedError to weighted::Error, revising variants (#​1382) and mark as #[non_exhaustive] (#​1480)

API changes: SIMD

• Switch to std::simd, expand SIMD & docs (#​1239)

Reproducibility-breaking changes

• Make ReseedingRng::reseed discard remaining data from the last block generated (#​1379)
• Change fn SmallRng::seed_from_u64 implementation (#​1203)
• Allow UniformFloat::new samples and UniformFloat::sample_single to yield high (#​1462)
• Fix portability of distribution Slice (#​1469)
• Make Uniform for usize portable via UniformUsize (#​1487)
• Fix IndexdRandom::choose_multiple_weighted for very small seeds and optimize for large input length / low memory (#​1530)

Reproducibility-breaking optimisations

• Optimize fn sample_floyd, affecting output of rand::seq::index::sample and rand::seq::SliceRandom::choose_multiple (#​1277)
• New, faster algorithms for IteratorRandom::choose and choose_stable (#​1268)
• New, faster algorithms for SliceRandom::shuffle and partial_shuffle (#​1272)
• Optimize distribution Uniform: use Canon's method (single sampling) / Lemire's method (distribution sampling) for faster sampling (breaks value stability; #​1287)
• Optimize fn sample_single_inclusive for floats (+~20% perf) (#​1289)

Other optimisations

• Improve SmallRng initialization performance (#​1482)
• Optimise SIMD widening multiply (#​1247)

Other

• Add Cargo.lock.msrv file (#​1275)
• Reformat with rustfmt and enforce (#​1448)
• Apply Clippy suggestions and enforce (#​1448, #​1474)
• Move all benchmarks to new benches crate (#​1329, #​1439) and migrate to Criterion (#​1490)

Documentation

• Improve ThreadRng related docs (#​1257)
• Docs: enable experimental --generate-link-to-definition feature (#​1327)
• Better doc of crate features, use doc_auto_cfg (#​1411, #​1450)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[renovate]

⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path Cargo.toml --package [email protected] --precise 0.9.0
    Updating crates.io index
error: failed to select a version for the requirement `rand = "^0.8"`
candidate versions found which didn't match: 0.9.0
location searched: crates.io index
required by package `oauth2 v5.0.0`
    ... which satisfies dependency `oauth2 = "=5.0.0"` (locked to 5.0.0) of package `crates_io_github v0.0.0 (/tmp/renovate/repos/github/rust-lang/crates.io/crates/crates_io_github)`

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path crates/crates_io_smoke_test/Cargo.toml --package [email protected] --precise 0.9.0
    Updating crates.io index
error: failed to select a version for the requirement `rand = "^0.8"`
candidate versions found which didn't match: 0.9.0
location searched: crates.io index
required by package `oauth2 v5.0.0`
    ... which satisfies dependency `oauth2 = "=5.0.0"` (locked to 5.0.0) of package `crates_io_github v0.0.0 (/tmp/renovate/repos/github/rust-lang/crates.io/crates/crates_io_github)`

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path crates/crates_io_test_db/Cargo.toml --package [email protected] --precise 0.9.0
    Updating crates.io index
error: failed to select a version for the requirement `rand = "^0.8"`
candidate versions found which didn't match: 0.9.0
location searched: crates.io index
required by package `oauth2 v5.0.0`
    ... which satisfies dependency `oauth2 = "=5.0.0"` (locked to 5.0.0) of package `crates_io_github v0.0.0 (/tmp/renovate/repos/github/rust-lang/crates.io/crates/crates_io_github)`

[renovate]

Edited/Blocked Notification

Renovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR.

You can manually request rebase by checking the rebase/retry box above.

⚠️ Warning: custom changes will be lost.

[LawnGnome]

👍

[LawnGnome]

distr

ಠ_ಠ

[Turbo87]

yeah... seems like a pretty pointless breaking change