Upgrade rust/crates/rayon to 1.5.1 am: dd2305def6 am: 489816d978

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/rayon/+/1712353

Change-Id: I96a97c1ed64108601b07a7ad9cf0c2dd296360ef

1 files changed, 3 insertions, 0 deletions

diff --git a/build.rs b/build.rs
index 70e301b..e52e326 100644
--- a/build.rs
+++ b/build.rs
@@ -3,4 +3,7 @@ fn main() {
     if ac.probe_expression("(0..10).step_by(2).rev()") {
         autocfg::emit("step_by");
     }
+    if ac.probe_expression("{ fn foo<const N: usize>() {} }") {
+        autocfg::emit("min_const_generics");
+    }
 }