Fix a few impl stability attributes

The versions show up in rustdoc.

3 files changed, 10 insertions, 10 deletions

diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs
index de5fc5bfad1..8cb7b2bda75 100644
--- a/src/libstd/io/mod.rs
+++ b/src/libstd/io/mod.rs
@@ -1450,7 +1450,7 @@ pub struct Chain<T, U> {
     done_first: bool,
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl<T: fmt::Debug, U: fmt::Debug> fmt::Debug for Chain<T, U> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_struct("Chain")
diff --git a/src/libstd/io/stdio.rs b/src/libstd/io/stdio.rs
index 83a675eb512..e16e8019b5f 100644
--- a/src/libstd/io/stdio.rs
+++ b/src/libstd/io/stdio.rs
@@ -282,7 +282,7 @@ impl Stdin {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for Stdin {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("Stdin { .. }")
@@ -321,7 +321,7 @@ impl<'a> BufRead for StdinLock<'a> {
     fn consume(&mut self, n: usize) { self.inner.consume(n) }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl<'a> fmt::Debug for StdinLock<'a> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("StdinLock { .. }")
@@ -438,7 +438,7 @@ impl Stdout {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for Stdout {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("Stdout { .. }")
@@ -470,7 +470,7 @@ impl<'a> Write for StdoutLock<'a> {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl<'a> fmt::Debug for StdoutLock<'a> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("StdoutLock { .. }")
@@ -573,7 +573,7 @@ impl Stderr {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for Stderr {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("Stderr { .. }")
@@ -605,7 +605,7 @@ impl<'a> Write for StderrLock<'a> {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl<'a> fmt::Debug for StderrLock<'a> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("StderrLock { .. }")
diff --git a/src/libstd/io/util.rs b/src/libstd/io/util.rs
index e50665120eb..4163187488e 100644
--- a/src/libstd/io/util.rs
+++ b/src/libstd/io/util.rs
@@ -98,7 +98,7 @@ impl BufRead for Empty {
     fn consume(&mut self, _n: usize) {}
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for Empty {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("Empty { .. }")
@@ -141,7 +141,7 @@ impl Read for Repeat {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for Repeat {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("Repeat { .. }")
@@ -180,7 +180,7 @@ impl Write for Sink {
     fn flush(&mut self) -> io::Result<()> { Ok(()) }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for Sink {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("Sink { .. }")