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-rw-r--r--library/std/src/sys/unix/ext/fs.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/library/std/src/sys/unix/ext/fs.rs b/library/std/src/sys/unix/ext/fs.rs
index afcd80abb9d..15831c632ea 100644
--- a/library/std/src/sys/unix/ext/fs.rs
+++ b/library/std/src/sys/unix/ext/fs.rs
@@ -357,6 +357,7 @@ pub trait OpenOptionsExt {
     ///
     /// ```no_run
     /// # #![feature(rustc_private)]
+    /// #![feature(open_options_ext_as_flags)]
     /// extern crate libc;
     /// use std::ffi::CString;
     /// use std::fs::OpenOptions;