ffi_returns_twice is removed

Summary: forward compat fix: feature ffi_returns_twice is removed in 1.78.0. Reviewed By: dtolnay Differential Revision: D56452209 fbshipit-source-id: f5d9f9dbd63c1213ef71d023f08e97a793f9e525
facebookexperimental · Apr 23, 2024 · ef50616 · ef50616
1 parent d296065
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diff --git a/experimental/reverie-sabre/src/ffi/clone.rs b/experimental/reverie-sabre/src/ffi/clone.rs
@@ -16,7 +16,6 @@ extern "C" {
     // compiler optimizations. Because of this, vfork *must* be implemented in
     // raw assembly. It can't be safely implemented in Rust inline asm. For more
     // information, see: https://github.com/rust-lang/libc/issues/1596
-    #[ffi_returns_twice]
     pub fn vfork_syscall() -> usize;
 }
 

diff --git a/experimental/reverie-sabre/src/lib.rs b/experimental/reverie-sabre/src/lib.rs
@@ -6,8 +6,6 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-#![feature(ffi_returns_twice)]
-
 //! This library provides an ergonomic interface writing SaBRe plugins with
 //! Rust.