[nll] libpanic_unwind: enable feature(nll) for bootstrap

Author: memoryruins

src/libpanic_unwind/lib.rs

@@ -34,6 +34,7 @@
 #![feature(core_intrinsics)]
 #![feature(lang_items)]
 #![feature(libc)]
+#![cfg_attr(not(stage0), feature(nll))]
 #![feature(panic_unwind)]
 #![feature(raw)]
 #![feature(staged_api)]