Update turbopack/crates/turbopack-cli/src/lib.rs

Author: mischnic

Diff for: turbopack/crates/turbopack-cli/src/lib.rs

@@ -2,7 +2,6 @@
 #![feature(min_specialization)]
 #![feature(arbitrary_self_types)]
 #![feature(arbitrary_self_types_pointers)]
-#![feature(async_closure)]
 
 pub mod arguments;
 pub mod build;