crossbeam-utils is taking the target triplet and comparing it against a
known list of platforms that have issues either with any atomics or with
64 bit atomics. Since OE encodes TARGET_VENDOR into the rust triplet (to
differentiate host vs. target) this means that platforms that should match,
don't.

We could make a list of platforms and pass in configuration values but
having one list in rust and another in our recipes is likely to cause
problems in the future. We do already have this issue in the librsvg recipe.
Instead, switch out the value of TARGET_VENDOR for "-unknown" which
them makes the list in no_atomics.rs work correctly.

Someone with more rust knowledge could split up the triplets in no_atmoics.rs
and compare against the architecture/processor, or replace -unknown with a glob
to create a patch that upstream might accept.

Upstream-Status: Inappropriate [OE Specific tweak  but could be rewritten]
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Index: rustc-1.63.0-src/vendor/crossbeam-utils/build.rs
===================================================================
--- rustc-1.63.0-src.orig/vendor/crossbeam-utils/build.rs
+++ rustc-1.63.0-src/vendor/crossbeam-utils/build.rs
@@ -29,7 +29,7 @@ use std::env;
 include!("no_atomic.rs");
 
 fn main() {
-    let target = match env::var("TARGET") {
+    let mut target = match env::var("TARGET") {
         Ok(target) => target,
         Err(e) => {
             println!(
@@ -40,6 +40,8 @@ fn main() {
             return;
         }
     };
+    let vendor = env::var("TARGET_VENDOR").unwrap();
+    target = target.replace(&vendor, "-unknown");
 
     // Note that this is `no_*`, not `has_*`. This allows treating
     // `cfg(target_has_atomic = "ptr")` as true when the build script doesn't
Index: rustc-1.63.0-src/vendor/crossbeam-utils/.cargo-checksum.json
===================================================================
--- rustc-1.63.0-src.orig/vendor/crossbeam-utils/.cargo-checksum.json
+++ rustc-1.63.0-src/vendor/crossbeam-utils/.cargo-checksum.json
@@ -1 +1 @@
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\ No newline at end of file
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\ No newline at end of file