* allow pedantic invalid cast lint
* allow lint with false-positive triggered by `test-case` crate
* nightly `fmt` correction
* adapt to rust layout changes
* remove dubious test
* Use transmute instead of pointer cast and de/ref when check_aligned is false.
* Renames clippy::integer_arithmetic to clippy::arithmetic_side_effects.
* bump rust nightly to 2023-08-25
* Upgrades Rust to 1.72.0
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Co-authored-by: Trent Nelson <trent@solana.com>
`Arc` is already a reference internally, so it does not seem to be
beneficial to pass a reference to it. Just adds an extra layer of
indirection.
Functions that need to be able to increment `Arc` reference count need
to take `Arc<AtomicBool>`, but those that just want to read the
`AtomicBool` value can accept `&AtomicBool`, making them a bit more
generic.
This change focuses specifically on `Arc<AtomicBool>`. There are other
uses of `&Arc<T>` in the code base that could be converted in a similar
manner. But it would make the change even larger.
Tenets:
1. Limit thread names to 15 characters
2. Prefix all Solana-controlled threads with "sol"
3. Use Camel case. It's more character dense than Snake or Kebab case