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-rw-r--r--library/stdarch/crates/assert-instr-macro/build.rs2
1 files changed, 0 insertions, 2 deletions
diff --git a/library/stdarch/crates/assert-instr-macro/build.rs b/library/stdarch/crates/assert-instr-macro/build.rs
index e02205f3b4f..360bc274213 100644
--- a/library/stdarch/crates/assert-instr-macro/build.rs
+++ b/library/stdarch/crates/assert-instr-macro/build.rs
@@ -1,8 +1,6 @@
 use std::env;
 
 fn main() {
-    println!("cargo:rerun-if-changed=build.rs");
-    println!("cargo::rustc-check-cfg=cfg(optimized)");
     let opt_level = env::var("OPT_LEVEL")
         .ok()
         .and_then(|s| s.parse().ok())