[bug] build fails after 'cargo update'

[JoeCap08055]

Recently, doing a cargo update results in the inability to build. The following error results:

error[E0658]: use of unstable library feature 'stdsimd'
   --> /Users/joecaputo/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ahash-0.8.7/src/operations.rs:124:24
    |
124 |     let res = unsafe { vaesmcq_u8(vaeseq_u8(transmute!(value), transmute!(0u128))) };
    |                        ^^^^^^^^^^
    |
    = note: see issue #48556 <https://github.com/rust-lang/rust/issues/48556> for more information

error[E0658]: use of unstable library feature 'stdsimd'
   --> /Users/joecaputo/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ahash-0.8.7/src/operations.rs:124:35
    |
124 |     let res = unsafe { vaesmcq_u8(vaeseq_u8(transmute!(value), transmute!(0u128))) };
    |                                   ^^^^^^^^^
    |
    = note: see issue #48556 <https://github.com/rust-lang/rust/issues/48556> for more information

error[E0658]: use of unstable library feature 'stdsimd'
   --> /Users/joecaputo/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ahash-0.8.7/src/operations.rs:154:24
    |
154 |     let res = unsafe { vaesimcq_u8(vaesdq_u8(transmute!(value), transmute!(0u128))) };
    |                        ^^^^^^^^^^^
    |
    = note: see issue #48556 <https://github.com/rust-lang/rust/issues/48556> for more information

error[E0658]: use of unstable library feature 'stdsimd'
   --> /Users/joecaputo/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ahash-0.8.7/src/operations.rs:154:36
    |
154 |     let res = unsafe { vaesimcq_u8(vaesdq_u8(transmute!(value), transmute!(0u128))) };
    |                                    ^^^^^^^^^
    |
    = note: see issue #48556 <https://github.com/rust-lang/rust/issues/48556> for more information

For more information about this error, try `rustc --explain E0658`.
error: could not compile `ahash` (lib) due to 4 previous errors

The error seems to be due to the upgrade of package ahash (a transitive dependency in both polkadot-sdk and one or two other packages) from version 0.8.6 -> 0.8.7.
Interestingly, the git repo for ahash show 0.8.5 as the latest release tag or branch; but crates.io has both 0.8.6 and 0.8.7; not sure how they got there.

[wilwade]

@JoeCap08055 Did this get resolved?

[JoeCap08055]

@JoeCap08055 Did this get resolved?

Not fixed yet, but

error: package `clap_lex v0.7.0` cannot be built because it requires rustc 1.74 or newer, while the currently active rustc version is 1.70.0
Either upgrade to rustc 1.74 or newer, or use
cargo update -p [email protected] --precise ver
where `ver` is the latest version of `clap_lex` supporting rustc 1.70.0
make: *** [build] Error 101

I can put up a PR to fix this new issue, but then the original issue still remains.

[JoeCap08055]

Fixed by:
tkaitchuck/aHash#207, tkaitchuck/aHash#208

Apparently was only broken for MacOS/ARM builds.