Set version placeholders to 1.68

Author: Mark-Simulacrum

alloc/src/collections/vec_deque/mod.rs

@@ -537,7 +537,7 @@ impl<T> VecDeque<T> {
     /// ```
     #[inline]
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_const_stable(feature = "const_vec_deque_new", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_vec_deque_new", since = "1.68.0")]
     #[must_use]
     pub const fn new() -> VecDeque<T> {
         // FIXME: This should just be `VecDeque::new_in(Global)` once that hits stable.

alloc/src/string.rs

@@ -2549,7 +2549,7 @@ impl ToString for char {
 }
 
 #[cfg(not(no_global_oom_handling))]
-#[stable(feature = "bool_to_string_specialization", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "bool_to_string_specialization", since = "1.68.0")]
 impl ToString for bool {
     #[inline]
     fn to_string(&self) -> String {

core/src/convert/num.rs

@@ -169,7 +169,7 @@ impl_from! { u32, f64, #[stable(feature = "lossless_float_conv", since = "1.6.0"
 impl_from! { f32, f64, #[stable(feature = "lossless_float_conv", since = "1.6.0")] }
 
 // bool -> Float
-#[stable(feature = "float_from_bool", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "float_from_bool", since = "1.68.0")]
 #[rustc_const_unstable(feature = "const_num_from_num", issue = "87852")]
 impl const From<bool> for f32 {
     /// Converts `bool` to `f32` losslessly.
@@ -178,7 +178,7 @@ impl const From<bool> for f32 {
         small as u8 as Self
     }
 }
-#[stable(feature = "float_from_bool", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "float_from_bool", since = "1.68.0")]
 #[rustc_const_unstable(feature = "const_num_from_num", issue = "87852")]
 impl const From<bool> for f64 {
     /// Converts `bool` to `f64` losslessly.

core/src/iter/sources/once_with.rs

@@ -73,7 +73,7 @@ pub struct OnceWith<F> {
     gen: Option<F>,
 }
 
-#[stable(feature = "iter_once_with_debug", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iter_once_with_debug", since = "1.68.0")]
 impl<F> fmt::Debug for OnceWith<F> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         if self.gen.is_some() {

core/src/iter/sources/repeat_with.rs

@@ -78,7 +78,7 @@ pub struct RepeatWith<F> {
     repeater: F,
 }
 
-#[stable(feature = "iterator_repeat_with_debug", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "iterator_repeat_with_debug", since = "1.68.0")]
 impl<F> fmt::Debug for RepeatWith<F> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("RepeatWith").finish_non_exhaustive()

core/src/pin.rs

@@ -1164,7 +1164,7 @@ impl<P, U> DispatchFromDyn<Pin<U>> for Pin<P> where P: DispatchFromDyn<U> {}
 /// constructor.
 ///
 /// [`Box::pin`]: ../../std/boxed/struct.Box.html#method.pin
-#[stable(feature = "pin_macro", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "pin_macro", since = "1.68.0")]
 #[rustc_macro_transparency = "semitransparent"]
 #[allow_internal_unstable(unsafe_pin_internals)]
 pub macro pin($value:expr $(,)?) {

std/src/path.rs

@@ -271,7 +271,7 @@ pub const MAIN_SEPARATOR: char = crate::sys::path::MAIN_SEP;
 /// The primary separator of path components for the current platform.
 ///
 /// For example, `/` on Unix and `\` on Windows.
-#[stable(feature = "main_separator_str", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "main_separator_str", since = "1.68.0")]
 pub const MAIN_SEPARATOR_STR: &str = crate::sys::path::MAIN_SEP_STR;
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -1778,7 +1778,7 @@ impl ops::Deref for PathBuf {
     }
 }
 
-#[stable(feature = "path_buf_deref_mut", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "path_buf_deref_mut", since = "1.68.0")]
 impl ops::DerefMut for PathBuf {
     #[inline]
     fn deref_mut(&mut self) -> &mut Path {