Replace version placeholder to 1.72

Author: Mark-Simulacrum

alloc/src/string.rs

@@ -1873,7 +1873,7 @@ impl String {
     /// let static_ref: &'static mut str = x.leak();
     /// assert_eq!(static_ref, "bucket");
     /// ```
-    #[stable(feature = "string_leak", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "string_leak", since = "1.72.0")]
     #[inline]
     pub fn leak<'a>(self) -> &'a mut str {
         let slice = self.vec.leak();

core/src/ffi/c_str.rs

@@ -377,7 +377,7 @@ impl CStr {
     /// assert!(cstr.is_err());
     /// ```
     #[stable(feature = "cstr_from_bytes", since = "1.10.0")]
-    #[rustc_const_stable(feature = "const_cstr_methods", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_cstr_methods", since = "1.72.0")]
     pub const fn from_bytes_with_nul(bytes: &[u8]) -> Result<&Self, FromBytesWithNulError> {
         let nul_pos = memchr::memchr(0, bytes);
         match nul_pos {
@@ -561,7 +561,7 @@ impl CStr {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_const_stable(feature = "const_cstr_methods", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_cstr_methods", since = "1.72.0")]
     pub const fn to_bytes(&self) -> &[u8] {
         let bytes = self.to_bytes_with_nul();
         // FIXME(const-hack) replace with range index
@@ -590,7 +590,7 @@ impl CStr {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_const_stable(feature = "const_cstr_methods", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_cstr_methods", since = "1.72.0")]
     pub const fn to_bytes_with_nul(&self) -> &[u8] {
         // SAFETY: Transmuting a slice of `c_char`s to a slice of `u8`s
         // is safe on all supported targets.
@@ -614,7 +614,7 @@ impl CStr {
     /// assert_eq!(cstr.to_str(), Ok("foo"));
     /// ```
     #[stable(feature = "cstr_to_str", since = "1.4.0")]
-    #[rustc_const_stable(feature = "const_cstr_methods", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_cstr_methods", since = "1.72.0")]
     pub const fn to_str(&self) -> Result<&str, str::Utf8Error> {
         // N.B., when `CStr` is changed to perform the length check in `.to_bytes()`
         // instead of in `from_ptr()`, it may be worth considering if this should

std/src/ffi/os_str.rs

@@ -1165,7 +1165,7 @@ impl<'a> From<Cow<'a, OsStr>> for OsString {
     }
 }
 
-#[stable(feature = "str_tryfrom_osstr_impl", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "str_tryfrom_osstr_impl", since = "1.72.0")]
 impl<'a> TryFrom<&'a OsStr> for &'a str {
     type Error = crate::str::Utf8Error;
 

std/src/sync/mpsc/mod.rs

@@ -347,7 +347,7 @@ pub struct Sender<T> {
 #[stable(feature = "rust1", since = "1.0.0")]
 unsafe impl<T: Send> Send for Sender<T> {}
 
-#[stable(feature = "mpsc_sender_sync", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "mpsc_sender_sync", since = "1.72.0")]
 unsafe impl<T: Send> Sync for Sender<T> {}
 
 /// The sending-half of Rust's synchronous [`sync_channel`] type.