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https://issues.apache.org/jira/browse/ARROW-6718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17266689#comment-17266689
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Kyle Strand commented on ARROW-6718:
------------------------------------
The library used by Arrow, `packed_simd`, is [no longer
maintained|https://github.com/rust-lang/packed_simd#the-cratesio-version-can-no-longer-be-updated].
It appears that the intended replacement,
[`stdsimd`|https://github.com/rust-lang/stdsimd], is not yet ready, though
there are architecture-specific components in
[`stdarch`|https://github.com/rust-lang/stdarch].
> [Rust] packed_simd requires nightly
> ------------------------------------
>
> Key: ARROW-6718
> URL: https://issues.apache.org/jira/browse/ARROW-6718
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: Rust
> Reporter: Andy Grove
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> See [https://github.com/rust-lang/rfcs/pull/2366] for more info on
> stabilization of this crate.
>
> {code:java}
> error[E0554]: `#![feature]` may not be used on the stable release channel
> -->
> /home/andy/.cargo/registry/src/github.com-1ecc6299db9ec823/packed_simd-0.3.3/src/lib.rs:202:1
> |
> 202 | / #![feature(
> 203 | | repr_simd,
> 204 | | const_fn,
> 205 | | platform_intrinsics,
> ... |
> 215 | | custom_inner_attributes
> 216 | | )]
> | |__^
> {code}
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