The new rowan uses arena allocator for red nodes which helps
slightly (5% on std completion test) with performance but should help
quite a bit with avoiding memory fragmentation.
343: Bump arrayvec from 0.4.9 to 0.4.10 r=matklad a=dependabot[bot]
Bumps [arrayvec](https://github.com/bluss/arrayvec) from 0.4.9 to 0.4.10.
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- [`21661fa`](21661facf8) 0.4.10
- [`06930d2`](06930d27ce) FIX: Remove unused Copy/Clone for MaybeUninit
- [`85d9a06`](85d9a06a62) FIX: Use repr(C) MaybeUninit after discussion with RalfJung
- See full diff in [compare view](https://github.com/bluss/arrayvec/compare/0.4.9...0.4.10)
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344: Bump itertools from 0.7.11 to 0.8.0 r=matklad a=dependabot[bot]
Bumps [itertools](https://github.com/bluss/rust-itertools) from 0.7.11 to 0.8.0.
<details>
<summary>Commits</summary>
- [`cd0602a`](cd0602addc) 0.8.0
- [`5a8f2fd`](5a8f2fd5ed) MAINT: Require Rust 1.24 as minimum version
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- [`e820996`](e820996f64) Document the trait extension behavior of Itertools a bit more clearly
- [`44c9654`](44c9654fdb) Merge pull request [#318](https://github-redirect.dependabot.com/bluss/rust-itertools/issues/318) from bluss/std-deprecations
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207: Finish implementing char validation r=aochagavia a=aochagavia
The only thing missing right now are good integration tests (and maybe more descriptive error messages)
Co-authored-by: Adolfo Ochagavía <github@adolfo.ochagavia.xyz>