fix(deps): update rust crate volatile to v0.6.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
volatile	dependencies	minor	=0.2.6 -> =0.6.1

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Release Notes

rust-osdev/volatile (volatile)

v0.6.1

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v0.6.0

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• Breaking: feat: introduce RestrictAccess<To> and generalize restrict to all access types by @​mkroening in #​60
• feat: implement derive macro for all access types by @​mkroening in #​61
• fix: add #[must_use] to volatile types, read, and as_raw_ptr by @​mkroening in #​58
• Add a semver checks CI job by @​phil-opp in #​63

Full Changelog: rust-osdev/volatile@v0.5.4...0.6.0

v0.5.4

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• Breaking: feat: introduce RestrictAccess<To> and generalize restrict to all access types by @​mkroening in #​60
• feat: implement derive macro for all access types by @​mkroening in #​61
• fix: add #[must_use] to volatile types, read, and as_raw_ptr by @​mkroening in #​58
• Add a semver checks CI job by @​phil-opp in #​63

Full Changelog: rust-osdev/volatile@v0.5.4...0.6.0

v0.5.3

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• Add #[derive(VolatileFieldAccess)] for easy, access-limited field-based access to structs by @​mkroening in #​49
• Add VolatileRef::restrict and VolatilePtr::restrict by @​mkroening in #​47
• Add VolatileRef::borrow and VolatileRef::borrow_mut by @​mkroening in #​46
• Add support for nested map_field operations by @​phil-opp in #​50
• docs: remove unused NonNull imports by @​mkroening in #​48
• fix(Cargo.toml): add categories by @​mkroening in #​52

v0.5.2

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• Add implementations for fmt::Pointer, PartialEq, Eq, PartialOrd, Ord and Hash.
• Update very_unstable feature to latest nightly
• Remove Sized requirement for Send and Sync impls on VolatileRef

v0.5.1

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• Fix: Add missing documentation of the map macro

v0.5.0

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• Breaking: New design based on raw pointers
  • The previous reference-based design was unsound because it allowed the compiler to insert spurious reads.
  • The new design features two wrapper types for raw pointers: VolatilePtr and VolatileRef
  • VolatilePtr provides safe read and write access to volatile values. Like raw pointers, it implements Copy and is !Sync.
  • VolatileRef is a pointer type that respects Rust's aliasing rules. It doesn't implement Copy, requires a &mut reference for modification, and implements Sync. It can converted to temporary VolatilePtr instances through the as_ptr/as_mut_ptr methods.
• We now provide methods for volatile slice operations and a map! macro for struct field projection. These advanced features are gated behind a cargo feature named "unstable".

v0.4.6

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• Fix UB in slice methods when Deref returns different references (#​27)

v0.4.5

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• Remove the const_generics feature flag (#​25)

v0.4.4

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• Replace feature "range_bounds_assert_len" with "slice_range" (#​21)
  • Fixes the unstable feature on the latest nightly.

v0.4.3

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• Add methods to restrict access (#​19)

v0.4.2

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• Change slice::check_range to RangeBounds::assert_len (#​16)
  • Fixes build on latest nightly.

v0.4.1

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• Small documentation and metadata improvements

v0.4.0

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• Breaking: Rewrite crate to operate on reference values (#​13)

v0.3.0

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• Breaking: Remove Debug and Clone derives for WriteOnly (#​12)

v0.2.7

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• Derive Default for Volatile, WriteOnly and ReadOnly (#​10)

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⚠️ Artifact update problem

Renovate failed to update an artifact 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
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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 0.6.1
error: failed to acquire package cache lock

Caused by:
  failed to open: /home/ubuntu/.cargo/.package-cache

Caused by:
  failed to create directory `/home/ubuntu/.cargo`

Caused by:
  File exists (os error 17)