Bump rayon from 1.3.1 to 1.5.1

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Bumps rayon from 1.3.1 to 1.5.1.

Changelog

Sourced from rayon's changelog.

Release rayon 1.5.1 / rayon-core 1.9.1 (2021-05-18)

• The new in_place_scope and in_place_scope_fifo are variations of scope and scope_fifo, running the initial non-Send callback directly on the current thread, rather than moving execution to the thread pool.
• With Rust 1.51 or later, arrays now implement IntoParallelIterator.
• New implementations of FromParallelIterator make it possible to collect complicated nestings of items.
  • FromParallelIterator<(A, B)> for (FromA, FromB) works like unzip.
  • FromParallelIterator<Either<L, R>> for (A, B) works like partition_map.
• Type inference now works better with parallel Range and RangeInclusive.
• The implementation of FromParallelIterator and ParallelExtend for Vec<T> now uses MaybeUninit<T> internally to avoid creating any references to uninitialized data.
• ParallelBridge fixed a bug with threads missing available work.

Contributors

Thanks to all of the contributors for this release!

• @​atouchet
• @​cuviper
• @​Hywan
• @​iRaiko
• @​Qwaz
• @​rocallahan

Release rayon 1.5.0 / rayon-core 1.9.0 (2020-10-21)

• Update crossbeam dependencies.
• The minimum supported rustc is now 1.36.

Contributors

Thanks to all of the contributors for this release!

• @​cuviper
• @​mbrubeck
• @​mrksu

Release rayon 1.4.1 (2020-09-29)

• The new flat_map_iter and flatten_iter methods can be used to flatten sequential iterators, which may perform better in cases that don't need the nested parallelism of flat_map and flatten.
• The new par_drain method is a parallel version of the standard drain for collections, removing items while keeping the original capacity. Collections that implement this through ParallelDrainRange support draining items from arbitrary index ranges, while ParallelDrainFull always drains everything.
• The new positions method finds all items that match the given predicate and

... (truncated)

Commits

• ebcb09b adjust the latest release date
• 93d9091 Merge #860
• dbc026b Release rayon 1.5.1 / rayon-core 1.9.1
• 87aae49 Merge #859
• 2e13d89 Update demo dependencies
• 3c7489e Merge #855
• 0bd4ec6 Add in_place_scope_fifo
• 6a01573 Merge #844
• 8815e26 Implement in_place_scope: a scope that runs its driver closure on the same th...
• aacced8 Merge #852
• Additional commits viewable in compare view

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