bytemuck_derive

chore: Release bytemuck_derive version 1.10.2

• Bumped the minimum bytemuck_derive dependency version from 1.0 to 1.1. The fact that bytemuck and bytemuck_derive are separate crates at all is an unfortunate technical limit of current Rust, woe and calamity.

• fu5ha added the NoUninit, AnyBitPattern, and CheckedBitPattern traits. This allows for a more fine-grained level of detail in what casting operations are allowed for a type. Types that already implement Zeroable and Pod will have a blanket impl for these new traits. This is a "preview" of the direction that the crate will probably go in the eventual 2.0 version. We're still waiting on Project Safe Transmute for an actual 2.0 version of the crate, but until then please enjoy this preview.
• Also Fusha added better support for union types in the derive macros. I still don't know how any of the proc-macro stuff works at all, so please direct questions to her.

• try_pod_read_unaligned and pod_read_unaligned let you go from &[u8] to T:Pod without worrying about alignment.

• Soundness Fix: The wrap/peel methods for owned value conversion, added to TransparentWrapper in 1.6, can cause a double-drop if used with types that impl Drop. The fix was simply to add a ManuallyDrop layer around the value before doing the transmute_copy that is used to wrap/peel. While this fix could technically be backported to the 1.6 series, since 1.7 is semver compatible anyway the 1.6 series has simply been yanked.

• DJMcNab did a fix so that the crate can build for SPIR-V PR 67

• thomcc fixed up the CI and patched over a soundness hole in offset_of!. PR 38

• Had a bug because the CI was messed up! It wasn't soundness related, because it prevented the crate from building entirely if the extern_crate_alloc feature was used. Still, this is yanked, sorry.

• thomcc added many things:
  • A fully sound offset_of! macro #10
  • A Contiguous trait for when you've got enums with declared values all in a row #12
  • A TransparentWrapper marker trait for when you want to more clearly enable adding and removing a wrapper struct to its inner value #15
  • Now MIRI is run on CI in every single push! #16

• SimonSapin added from_bytes, from_bytes_mut, try_from_bytes, and try_from_bytes_mut (PR Link)

• Changed to the zlib license.
• Added much more proper documentation.
• Reduced the minimum Rust version to 1.34