Hello, I'm having a compile error on latest nightly when using the nightly_stdsimd for bytemuck on rustc 1.78.0-nightly (f067fd608 2024-02-05).
To test, having a blank project with:
[dependencies]
bytemuck = { version = "=1.14.1", default-features = false, features = [
"nightly_stdsimd",
] }
Results in a compilation error:
cargo check result
```
Checking bytemuck v1.14.1
error[E0658]: use of unstable library feature 'stdarch_x86_avx512'
--> /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/lib.rs:122:28
|
122 | unsafe impl $trait for $platform::$first_type {}
| ^
|
::: /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/zeroable.rs:239:1
|
239 | / impl_unsafe_marker_for_simd!(
240 | | #[cfg(all(target_arch = "x86_64", feature = "nightly_stdsimd"))]
241 | | unsafe impl Zeroable for x86_64::{
242 | | __m128bh, __m256bh, __m512,
243 | | __m512bh, __m512d, __m512i,
244 | | }
245 | | );
| |_- in this macro invocation
|
= note: see issue #111137 for more information
= help: add `#![feature(stdarch_x86_avx512)]` to the crate attributes to enable
= note: this compiler was built on 2024-02-05; consider upgrading it if it is out of date
= note: this error originates in the macro `impl_unsafe_marker_for_simd` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0658]: use of unstable library feature 'stdarch_x86_avx512'
--> /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/lib.rs:122:28
|
122 | unsafe impl $trait for $platform::$first_type {}
| ^
|
::: /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/pod.rs:159:1
|
159 | / impl_unsafe_marker_for_simd!(
160 | | #[cfg(all(target_arch = "x86_64", feature = "nightly_stdsimd"))]
161 | | unsafe impl Pod for x86_64::{
162 | | __m128bh, __m256bh, __m512,
163 | | __m512bh, __m512d, __m512i,
164 | | }
165 | | );
| |_- in this macro invocation
|
= note: see issue #111137 for more information
= help: add `#![feature(stdarch_x86_avx512)]` to the crate attributes to enable
= note: this compiler was built on 2024-02-05; consider upgrading it if it is out of date
= note: this error originates in the macro `impl_unsafe_marker_for_simd` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0635]: unknown feature `stdsimd`
--> /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/lib.rs:7:50
|
7 | #![cfg_attr(feature = "nightly_stdsimd", feature(stdsimd))]
| ^^^^^^^
Some errors have detailed explanations: E0635, E0658.
For more information about an error, try `rustc --explain E0635`.
error: could not compile `bytemuck` (lib) due to 7 previous errors
```
Hello, I'm having a compile error on latest nightly when using the
nightly_stdsimd
forbytemuck
onrustc 1.78.0-nightly (f067fd608 2024-02-05)
.To test, having a blank project with:
Results in a compilation error:
cargo check result
``` Checking bytemuck v1.14.1 error[E0658]: use of unstable library feature 'stdarch_x86_avx512' --> /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/lib.rs:122:28 | 122 | unsafe impl $trait for $platform::$first_type {} | ^ | ::: /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/zeroable.rs:239:1 | 239 | / impl_unsafe_marker_for_simd!( 240 | | #[cfg(all(target_arch = "x86_64", feature = "nightly_stdsimd"))] 241 | | unsafe impl Zeroable for x86_64::{ 242 | | __m128bh, __m256bh, __m512, 243 | | __m512bh, __m512d, __m512i, 244 | | } 245 | | ); | |_- in this macro invocation | = note: see issue #111137 for more information
= help: add `#![feature(stdarch_x86_avx512)]` to the crate attributes to enable
= note: this compiler was built on 2024-02-05; consider upgrading it if it is out of date
= note: this error originates in the macro `impl_unsafe_marker_for_simd` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0658]: use of unstable library feature 'stdarch_x86_avx512'
--> /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/lib.rs:122:28
|
122 | unsafe impl $trait for $platform::$first_type {}
| ^
|
::: /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/pod.rs:159:1
|
159 | / impl_unsafe_marker_for_simd!(
160 | | #[cfg(all(target_arch = "x86_64", feature = "nightly_stdsimd"))]
161 | | unsafe impl Pod for x86_64::{
162 | | __m128bh, __m256bh, __m512,
163 | | __m512bh, __m512d, __m512i,
164 | | }
165 | | );
| |_- in this macro invocation
|
= note: see issue #111137 for more information
= help: add `#![feature(stdarch_x86_avx512)]` to the crate attributes to enable
= note: this compiler was built on 2024-02-05; consider upgrading it if it is out of date
= note: this error originates in the macro `impl_unsafe_marker_for_simd` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0635]: unknown feature `stdsimd`
--> /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/bytemuck-1.14.1/src/lib.rs:7:50
|
7 | #![cfg_attr(feature = "nightly_stdsimd", feature(stdsimd))]
| ^^^^^^^
Some errors have detailed explanations: E0635, E0658.
For more information about an error, try `rustc --explain E0635`.
error: could not compile `bytemuck` (lib) due to 7 previous errors
```
As the messages suggest, putting
stdarch_x86_avx512
in place ofstdsimd
in: https://github.com/Lokathor/bytemuck/blob/5f9347741878dcab5df67459aa993e01b22f5bb5/src/lib.rs#L7 Seems to fix it.Note:
Thanks!