Rollup merge of #136949 - ehuss:wasm-bench-time, r=jhpratt

Fix import in bench for wasm

This import was causing annoying unused import errors when checking the standard library for some wasm targets. The problem is that everything here is disabled if it is wasm32, but this import wasn't cfg'd.

1 files changed, 1 insertions, 2 deletions

diff --git a/library/std/benches/time.rs b/library/std/benches/time.rs
index 552481cad92..dfd886738f9 100644
--- a/library/std/benches/time.rs
+++ b/library/std/benches/time.rs
@@ -1,5 +1,3 @@
-use std::time::Instant;
-
 #[cfg(not(target_arch = "wasm32"))]
 use test::{Bencher, black_box};
 
@@ -10,6 +8,7 @@ macro_rules! bench_instant_threaded {
         fn $bench_name(b: &mut Bencher) -> std::thread::Result<()> {
             use std::sync::Arc;
             use std::sync::atomic::{AtomicBool, Ordering};
+            use std::time::Instant;
 
             let running = Arc::new(AtomicBool::new(true));