Require stability annotations on fields of tuple variants

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs
index b5ba6ff54c0..f8ae6228527 100644
--- a/src/libstd/io/mod.rs
+++ b/src/libstd/io/mod.rs
@@ -1175,7 +1175,7 @@ pub trait Seek {
 pub enum SeekFrom {
     /// Set the offset to the provided number of bytes.
     #[stable(feature = "rust1", since = "1.0.0")]
-    Start(u64),
+    Start(#[cfg_attr(not(stage0), stable(feature = "rust1", since = "1.0.0"))] u64),
 
     /// Set the offset to the size of this object plus the specified number of
     /// bytes.
@@ -1183,7 +1183,7 @@ pub enum SeekFrom {
     /// It is possible to seek beyond the end of an object, but it's an error to
     /// seek before byte 0.
     #[stable(feature = "rust1", since = "1.0.0")]
-    End(i64),
+    End(#[cfg_attr(not(stage0), stable(feature = "rust1", since = "1.0.0"))] i64),
 
     /// Set the offset to the current position plus the specified number of
     /// bytes.
@@ -1191,7 +1191,7 @@ pub enum SeekFrom {
     /// It is possible to seek beyond the end of an object, but it's an error to
     /// seek before byte 0.
     #[stable(feature = "rust1", since = "1.0.0")]
-    Current(i64),
+    Current(#[cfg_attr(not(stage0), stable(feature = "rust1", since = "1.0.0"))] i64),
 }
 
 fn read_until<R: BufRead + ?Sized>(r: &mut R, delim: u8, buf: &mut Vec<u8>)