Building cargo-c on netbsd-10/i386 fails

["John D. Baker" <jdbaker%consolidated.net@localhost>]

Attempting to build "devel/cargo-c" from pkgsrc-HEAD on up-to-date
NetBSD/i386-10.0_BETA fails with:

[...]
===> Building for cargo-c-0.9.24
   Compiling faster-hex v0.8.0
error[E0425]: cannot find function `vectorization_support_no_cache_x86` in this scope
  --> /tmp/pkgsrc/devel/cargo-c/work/vendor/faster-hex-0.8.0/src/lib.rs:63:28
   |
63 |         let val = unsafe { vectorization_support_no_cache_x86() };
   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope

For more information about this error, try `rustc --explain E0425`.
error: could not compile `faster-hex` (lib) due to previous error
*** Error code 101

Stop.
make[1]: stopped in /x/pkgsrc/devel/cargo-c
*** Error code 1

Stop.
make: stopped in /x/pkgsrc/devel/cargo-c


Anyone else trying this and seeing similar?

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