compilation fails for target aarch64-apple-visionos

[adiibanez]

While trying to build wasmex ( wasmtime elixir runtime ) I see this exception related to rustix:

   Compiling serde_derive v1.0.219
   Compiling synstructure v0.13.1
   Compiling wasmtime-versioned-export-macros v30.0.2
   Compiling thiserror-impl v1.0.69
   Compiling zerovec-derive v0.10.3
   Compiling displaydoc v0.2.5
   Compiling zstd-sys v2.0.15+zstd.1.5.7
   Compiling icu_provider_macros v1.5.0
   Compiling cap-primitives v3.4.2
   Compiling directories-next v2.0.0
error[E0308]: mismatched types
   --> /Users/adrianibanez/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cap-primitives-3.4.2/src/rustix/fs/dir_utils.rs:126:40
    |
126 | pub(crate) const fn target_o_path() -> OFlags {
    |                     -------------      ^^^^^^ expected `OFlags`, found `()`
    |                     |
    |                     implicitly returns `()` as its body has no tail or `return` expression

error[E0599]: no associated item named `RSYNC` found for struct `OFlags` in the current scope
  --> /Users/adrianibanez/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cap-primitives-3.4.2/src/rustix/fs/oflags.rs:34:27
   |
34 |         oflags |= OFlags::RSYNC;
   |                           ^^^^^ associated item not found in `OFlags`
   |
help: there is an associated constant `DSYNC` with a similar name
   |
34 |         oflags |= OFlags::DSYNC;
   |                           ~~~~~

   Compiling rayon-core v1.12.1
Some errors have detailed explanations: E0308, E0599.
For more information about an error, try `rustc --explain E0308`.
error: could not compile `cap-primitives` (lib) due to 2 previous errors
warning: build failed, waiting for other jobs to finish...
```

cargo rustc -Zbuild-std --target=aarch64-apple-visionos

I tried these toolchains: 

nightly-2024-11-01
nightly-2025-01-01

[sunfishcode]

The error here will be fixed by #386, however this issue will also depend on strawlab/iana-time-zone#146 being available in a release.

[sunfishcode]

This is now fixed in cap-std 3.4.3, and it appears iana-time-zone has had a release as well.