Rollup merge of #43137 - ollie27:stab, r=aturon

Correct some stability attributes

These show up in rustdoc so need to be correct.

src/liballoc/boxed.rs

@@ -726,14 +726,14 @@ fn drop(&mut self) {
     }
 }
 
-#[stable(feature = "rust1", since = "1.0.0")]
+#[stable(feature = "box_borrow", since = "1.1.0")]
 impl<T: ?Sized> borrow::Borrow<T> for Box<T> {
     fn borrow(&self) -> &T {
         &**self
     }
 }
 
-#[stable(feature = "rust1", since = "1.0.0")]
+#[stable(feature = "box_borrow", since = "1.1.0")]
 impl<T: ?Sized> borrow::BorrowMut<T> for Box<T> {
     fn borrow_mut(&mut self) -> &mut T {
         &mut **self

src/libcore/cell.rs

@@ -942,7 +942,7 @@ pub fn map<U: ?Sized, F>(orig: Ref<'b, T>, f: F) -> Ref<'b, U>
 #[unstable(feature = "coerce_unsized", issue = "27732")]
 impl<'b, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<Ref<'b, U>> for Ref<'b, T> {}
 
-#[stable(feature = "std_guard_impls", since = "1.20")]
+#[stable(feature = "std_guard_impls", since = "1.20.0")]
 impl<'a, T: ?Sized + fmt::Display> fmt::Display for Ref<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         self.value.fmt(f)
@@ -1041,7 +1041,7 @@ fn deref_mut(&mut self) -> &mut T {
 #[unstable(feature = "coerce_unsized", issue = "27732")]
 impl<'b, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<RefMut<'b, U>> for RefMut<'b, T> {}
 
-#[stable(feature = "std_guard_impls", since = "1.20")]
+#[stable(feature = "std_guard_impls", since = "1.20.0")]
 impl<'a, T: ?Sized + fmt::Display> fmt::Display for RefMut<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         self.value.fmt(f)

src/libcore/char.rs

@@ -210,7 +210,7 @@ fn from(i: u8) -> Self {
 
 
 /// An error which can be returned when parsing a char.
-#[stable(feature = "char_from_str", since = "1.19.0")]
+#[stable(feature = "char_from_str", since = "1.20.0")]
 #[derive(Clone, Debug)]
 pub struct ParseCharError {
     kind: CharErrorKind,
@@ -237,7 +237,7 @@ enum CharErrorKind {
     TooManyChars,
 }
 
-#[stable(feature = "char_from_str", since = "1.19.0")]
+#[stable(feature = "char_from_str", since = "1.20.0")]
 impl fmt::Display for ParseCharError {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         self.__description().fmt(f)
@@ -245,7 +245,7 @@ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 }
 
 
-#[stable(feature = "char_from_str", since = "1.19.0")]
+#[stable(feature = "char_from_str", since = "1.20.0")]
 impl FromStr for char {
     type Err = ParseCharError;
 

src/libstd/error.rs

@@ -340,7 +340,7 @@ fn description(&self) -> &str {
     }
 }
 
-#[stable(feature = "char_from_str", since = "1.19.0")]
+#[stable(feature = "char_from_str", since = "1.20.0")]
 impl Error for char::ParseCharError {
     fn description(&self) -> &str {
         self.__description()

src/libstd/sync/mutex.rs

@@ -440,7 +440,7 @@ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
     }
 }
 
-#[stable(feature = "std_guard_impls", since = "1.20")]
+#[stable(feature = "std_guard_impls", since = "1.20.0")]
 impl<'a, T: ?Sized + fmt::Display> fmt::Display for MutexGuard<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         (**self).fmt(f)

src/libstd/sync/rwlock.rs

@@ -370,7 +370,7 @@ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
     }
 }
 
-#[stable(feature = "std_guard_impls", since = "1.20")]
+#[stable(feature = "std_guard_impls", since = "1.20.0")]
 impl<'a, T: ?Sized + fmt::Display> fmt::Display for RwLockReadGuard<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         (**self).fmt(f)
@@ -386,7 +386,7 @@ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
     }
 }
 
-#[stable(feature = "std_guard_impls", since = "1.20")]
+#[stable(feature = "std_guard_impls", since = "1.20.0")]
 impl<'a, T: ?Sized + fmt::Display> fmt::Display for RwLockWriteGuard<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         (**self).fmt(f)

src/libstd_unicode/char.rs

@@ -38,7 +38,7 @@
 pub use core::char::{MAX, from_digit, from_u32, from_u32_unchecked};
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use core::char::{EscapeDebug, EscapeDefault, EscapeUnicode};
-#[stable(feature = "char_from_str", since = "1.19.0")]
+#[stable(feature = "char_from_str", since = "1.20.0")]
 pub use core::char::ParseCharError;
 
 // unstable reexports