diff --git a/RELEASES.md b/RELEASES.md
index 8fcd22b0b448..a4e6f22ba3db 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -38,7 +38,6 @@ Stabilized APIs
 
 Cargo
 -----
-- [Cargo now supports alternative registries][cargo/4506]
 - [Cargo now supports uninstallation of multiple packages][cargo/4561]
   eg. `cargo uninstall foo bar` uninstalls `foo` and `bar`.
 - [Added unit test checking to `cargo check`][cargo/4592]
@@ -49,7 +48,6 @@ Misc
 ----
 - [Releases now ship with the Cargo book documentation.][45692]
 - [rustdoc now prints rendering warnings on every run.][45324]
-- [Release tarballs now come with rustfmt][45903]
 
 Compatibility Notes
 -------------------
@@ -83,9 +81,7 @@ Compatibility Notes
 [45852]: https://github.com/rust-lang/rust/issues/45852
 [45853]: https://github.com/rust-lang/rust/pull/45853
 [45887]: https://github.com/rust-lang/rust/pull/45887
-[45903]: https://github.com/rust-lang/rust/pull/45903
 [45920]: https://github.com/rust-lang/rust/pull/45920
-[cargo/4506]: https://github.com/rust-lang/cargo/pull/4506
 [cargo/4561]: https://github.com/rust-lang/cargo/pull/4561
 [cargo/4592]: https://github.com/rust-lang/cargo/pull/4592
 [cargo/4637]: https://github.com/rust-lang/cargo/pull/4637
diff --git a/src/liballoc_system/lib.rs b/src/liballoc_system/lib.rs
index 27259cc31a5e..1d5e7b73be55 100644
--- a/src/liballoc_system/lib.rs
+++ b/src/liballoc_system/lib.rs
@@ -21,7 +21,7 @@
 #![feature(core_intrinsics)]
 #![feature(staged_api)]
 #![feature(rustc_attrs)]
-#![cfg_attr(any(unix, target_os = "redox"), feature(libc))]
+#![cfg_attr(any(unix, target_os = "cloudabi", target_os = "redox"), feature(libc))]
 #![rustc_alloc_kind = "lib"]
 
 // The minimum alignment guaranteed by the architecture. This value is used to
@@ -116,7 +116,7 @@ unsafe impl Alloc for System {
     }
 }
 
-#[cfg(any(unix, target_os = "redox"))]
+#[cfg(any(unix, target_os = "cloudabi", target_os = "redox"))]
 mod platform {
     extern crate libc;
 
@@ -213,6 +213,16 @@ mod platform {
             struct Stderr;
 
             impl Write for Stderr {
+                #[cfg(target_os = "cloudabi")]
+                fn write_str(&mut self, _: &str) -> fmt::Result {
+                    // CloudABI does not have any reserved file descriptor
+                    // numbers. We should not attempt to write to file
+                    // descriptor #2, as it may be associated with any kind of
+                    // resource.
+                    Ok(())
+                }
+
+                #[cfg(not(target_os = "cloudabi"))]
                 fn write_str(&mut self, s: &str) -> fmt::Result {
                     unsafe {
                         libc::write(libc::STDERR_FILENO,
diff --git a/src/libcore/macros.rs b/src/libcore/macros.rs
index 948ad104cdf2..f00128a8147d 100644
--- a/src/libcore/macros.rs
+++ b/src/libcore/macros.rs
@@ -330,6 +330,7 @@ macro_rules! debug_assert_ne {
 /// // The prefered method of quick returning Errors
 /// fn write_to_file_question() -> Result<(), MyError> {
 ///     let mut file = File::create("my_best_friends.txt")?;
+///     file.write_all(b"This is a list of my best friends.")?;
 ///     Ok(())
 /// }
 ///
diff --git a/src/libcore/mem.rs b/src/libcore/mem.rs
index 5b1a9399c39b..93f6a0214d77 100644
--- a/src/libcore/mem.rs
+++ b/src/libcore/mem.rs
@@ -1024,7 +1024,7 @@ impl<T: ::fmt::Debug> ::fmt::Debug for ManuallyDrop<T> {
     }
 }
 
-#[stable(feature = "manually_drop", since = "1.20.0")]
+#[stable(feature = "manually_drop_impls", since = "1.22.0")]
 impl<T: Clone> Clone for ManuallyDrop<T> {
     fn clone(&self) -> Self {
         ManuallyDrop::new(self.deref().clone())
@@ -1035,14 +1035,14 @@ impl<T: Clone> Clone for ManuallyDrop<T> {
     }
 }
 
-#[stable(feature = "manually_drop", since = "1.20.0")]
+#[stable(feature = "manually_drop_impls", since = "1.22.0")]
 impl<T: Default> Default for ManuallyDrop<T> {
     fn default() -> Self {
         ManuallyDrop::new(Default::default())
     }
 }
 
-#[stable(feature = "manually_drop", since = "1.20.0")]
+#[stable(feature = "manually_drop_impls", since = "1.22.0")]
 impl<T: PartialEq> PartialEq for ManuallyDrop<T> {
     fn eq(&self, other: &Self) -> bool {
         self.deref().eq(other)
@@ -1053,10 +1053,10 @@ impl<T: PartialEq> PartialEq for ManuallyDrop<T> {
     }
 }
 
-#[stable(feature = "manually_drop", since = "1.20.0")]
+#[stable(feature = "manually_drop_impls", since = "1.22.0")]
 impl<T: Eq> Eq for ManuallyDrop<T> {}
 
-#[stable(feature = "manually_drop", since = "1.20.0")]
+#[stable(feature = "manually_drop_impls", since = "1.22.0")]
 impl<T: PartialOrd> PartialOrd for ManuallyDrop<T> {
     fn partial_cmp(&self, other: &Self) -> Option<::cmp::Ordering> {
         self.deref().partial_cmp(other)
@@ -1079,14 +1079,14 @@ impl<T: PartialOrd> PartialOrd for ManuallyDrop<T> {
     }
 }
 
-#[stable(feature = "manually_drop", since = "1.20.0")]
+#[stable(feature = "manually_drop_impls", since = "1.22.0")]
 impl<T: Ord> Ord for ManuallyDrop<T> {
     fn cmp(&self, other: &Self) -> ::cmp::Ordering {
         self.deref().cmp(other)
     }
 }
 
-#[stable(feature = "manually_drop", since = "1.20.0")]
+#[stable(feature = "manually_drop_impls", since = "1.22.0")]
 impl<T: ::hash::Hash> ::hash::Hash for ManuallyDrop<T> {
     fn hash<H: ::hash::Hasher>(&self, state: &mut H) {
         self.deref().hash(state);
diff --git a/src/libcore/str/mod.rs b/src/libcore/str/mod.rs
index 1ca995cae6d9..765b369e4b25 100644
--- a/src/libcore/str/mod.rs
+++ b/src/libcore/str/mod.rs
@@ -1997,7 +1997,9 @@ mod traits {
         }
     }
 
-    #[stable(feature = "str_checked_slicing", since = "1.20.0")]
+    #[unstable(feature = "inclusive_range",
+               reason = "recently added, follows RFC",
+               issue = "28237")]
     impl SliceIndex<str> for ops::RangeInclusive<usize> {
         type Output = str;
         #[inline]
@@ -2040,7 +2042,9 @@ mod traits {
 
 
 
-    #[stable(feature = "str_checked_slicing", since = "1.20.0")]
+    #[unstable(feature = "inclusive_range",
+               reason = "recently added, follows RFC",
+               issue = "28237")]
     impl SliceIndex<str> for ops::RangeToInclusive<usize> {
         type Output = str;
         #[inline]
diff --git a/src/libcore/sync/atomic.rs b/src/libcore/sync/atomic.rs
index e334d2014af7..3da9e9c87dde 100644
--- a/src/libcore/sync/atomic.rs
+++ b/src/libcore/sync/atomic.rs
@@ -944,6 +944,7 @@ macro_rules! atomic_int {
      $stable_cxchg:meta,
      $stable_debug:meta,
      $stable_access:meta,
+     $stable_from:meta,
      $s_int_type:expr, $int_ref:expr,
      $int_type:ident $atomic_type:ident $atomic_init:ident) => {
         /// An integer type which can be safely shared between threads.
@@ -978,7 +979,7 @@ macro_rules! atomic_int {
             }
         }
 
-        #[stable(feature = "atomic_from", since = "1.23.0")]
+        #[$stable_from]
         impl From<$int_type> for $atomic_type {
             #[inline]
             fn from(v: $int_type) -> Self { Self::new(v) }
@@ -1375,6 +1376,7 @@ atomic_int! {
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
+    unstable(feature = "integer_atomics", issue = "32976"),
     "i8", "../../../std/primitive.i8.html",
     i8 AtomicI8 ATOMIC_I8_INIT
 }
@@ -1384,6 +1386,7 @@ atomic_int! {
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
+    unstable(feature = "integer_atomics", issue = "32976"),
     "u8", "../../../std/primitive.u8.html",
     u8 AtomicU8 ATOMIC_U8_INIT
 }
@@ -1393,6 +1396,7 @@ atomic_int! {
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
+    unstable(feature = "integer_atomics", issue = "32976"),
     "i16", "../../../std/primitive.i16.html",
     i16 AtomicI16 ATOMIC_I16_INIT
 }
@@ -1402,6 +1406,7 @@ atomic_int! {
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
+    unstable(feature = "integer_atomics", issue = "32976"),
     "u16", "../../../std/primitive.u16.html",
     u16 AtomicU16 ATOMIC_U16_INIT
 }
@@ -1411,6 +1416,7 @@ atomic_int! {
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
+    unstable(feature = "integer_atomics", issue = "32976"),
     "i32", "../../../std/primitive.i32.html",
     i32 AtomicI32 ATOMIC_I32_INIT
 }
@@ -1420,6 +1426,7 @@ atomic_int! {
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
+    unstable(feature = "integer_atomics", issue = "32976"),
     "u32", "../../../std/primitive.u32.html",
     u32 AtomicU32 ATOMIC_U32_INIT
 }
@@ -1429,6 +1436,7 @@ atomic_int! {
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
+    unstable(feature = "integer_atomics", issue = "32976"),
     "i64", "../../../std/primitive.i64.html",
     i64 AtomicI64 ATOMIC_I64_INIT
 }
@@ -1438,6 +1446,7 @@ atomic_int! {
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
     unstable(feature = "integer_atomics", issue = "32976"),
+    unstable(feature = "integer_atomics", issue = "32976"),
     "u64", "../../../std/primitive.u64.html",
     u64 AtomicU64 ATOMIC_U64_INIT
 }
@@ -1447,6 +1456,7 @@ atomic_int!{
     stable(feature = "extended_compare_and_swap", since = "1.10.0"),
     stable(feature = "atomic_debug", since = "1.3.0"),
     stable(feature = "atomic_access", since = "1.15.0"),
+    stable(feature = "atomic_from", since = "1.23.0"),
     "isize", "../../../std/primitive.isize.html",
     isize AtomicIsize ATOMIC_ISIZE_INIT
 }
@@ -1456,6 +1466,7 @@ atomic_int!{
     stable(feature = "extended_compare_and_swap", since = "1.10.0"),
     stable(feature = "atomic_debug", since = "1.3.0"),
     stable(feature = "atomic_access", since = "1.15.0"),
+    stable(feature = "atomic_from", since = "1.23.0"),
     "usize", "../../../std/primitive.usize.html",
     usize AtomicUsize ATOMIC_USIZE_INIT
 }
diff --git a/src/librustc_back/target/cloudabi_base.rs b/src/librustc_back/target/cloudabi_base.rs
index 3353e7936f0d..4cd52ebb26df 100644
--- a/src/librustc_back/target/cloudabi_base.rs
+++ b/src/librustc_back/target/cloudabi_base.rs
@@ -27,6 +27,18 @@ pub fn opts() -> TargetOptions {
         linker_is_gnu: true,
         pre_link_args: args,
         position_independent_executables: true,
+        // As CloudABI only supports static linkage, there is no need
+        // for dynamic TLS. The C library therefore does not provide
+        // __tls_get_addr(), which is normally used to perform dynamic
+        // TLS lookups by programs that make use of dlopen(). Only the
+        // "local-exec" and "initial-exec" TLS models can be used.
+        //
+        // "local-exec" is more efficient than "initial-exec", as the
+        // latter has one more level of indirection: it accesses the GOT
+        // (Global Offset Table) to obtain the effective address of a
+        // thread-local variable. Using a GOT is useful only when doing
+        // dynamic linking.
+        tls_model: "local-exec".to_string(),
         relro_level: RelroLevel::Full,
         exe_allocation_crate: super::maybe_jemalloc(),
         .. Default::default()
diff --git a/src/librustc_llvm/ffi.rs b/src/librustc_llvm/ffi.rs
index 7d6534944651..4e6519562650 100644
--- a/src/librustc_llvm/ffi.rs
+++ b/src/librustc_llvm/ffi.rs
@@ -538,9 +538,6 @@ extern "C" {
     /// See llvm::LLVMTypeKind::getTypeID.
     pub fn LLVMRustGetTypeKind(Ty: TypeRef) -> TypeKind;
 
-    /// See llvm::Value::getContext
-    pub fn LLVMRustGetValueContext(V: ValueRef) -> ContextRef;
-
     // Operations on integer types
     pub fn LLVMInt1TypeInContext(C: ContextRef) -> TypeRef;
     pub fn LLVMInt8TypeInContext(C: ContextRef) -> TypeRef;
@@ -812,13 +809,12 @@ extern "C" {
                                Bundle: OperandBundleDefRef,
                                Name: *const c_char)
                                -> ValueRef;
-    pub fn LLVMRustBuildLandingPad(B: BuilderRef,
-                                   Ty: TypeRef,
-                                   PersFn: ValueRef,
-                                   NumClauses: c_uint,
-                                   Name: *const c_char,
-                                   F: ValueRef)
-                                   -> ValueRef;
+    pub fn LLVMBuildLandingPad(B: BuilderRef,
+                               Ty: TypeRef,
+                               PersFn: ValueRef,
+                               NumClauses: c_uint,
+                               Name: *const c_char)
+                               -> ValueRef;
     pub fn LLVMBuildResume(B: BuilderRef, Exn: ValueRef) -> ValueRef;
     pub fn LLVMBuildUnreachable(B: BuilderRef) -> ValueRef;
 
diff --git a/src/librustc_trans/builder.rs b/src/librustc_trans/builder.rs
index 5b697d6b99c9..4a0b1381a400 100644
--- a/src/librustc_trans/builder.rs
+++ b/src/librustc_trans/builder.rs
@@ -1012,12 +1012,11 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
     }
 
     pub fn landing_pad(&self, ty: Type, pers_fn: ValueRef,
-                       num_clauses: usize,
-                       llfn: ValueRef) -> ValueRef {
+                       num_clauses: usize) -> ValueRef {
         self.count_insn("landingpad");
         unsafe {
-            llvm::LLVMRustBuildLandingPad(self.llbuilder, ty.to_ref(), pers_fn,
-                                          num_clauses as c_uint, noname(), llfn)
+            llvm::LLVMBuildLandingPad(self.llbuilder, ty.to_ref(), pers_fn,
+                                      num_clauses as c_uint, noname())
         }
     }
 
diff --git a/src/librustc_trans/intrinsic.rs b/src/librustc_trans/intrinsic.rs
index 3cd60e7f1bc7..cfddd99d0dd9 100644
--- a/src/librustc_trans/intrinsic.rs
+++ b/src/librustc_trans/intrinsic.rs
@@ -925,7 +925,7 @@ fn trans_gnu_try<'a, 'tcx>(bcx: &Builder<'a, 'tcx>,
         // rust_try ignores the selector.
         let lpad_ty = Type::struct_(ccx, &[Type::i8p(ccx), Type::i32(ccx)],
                                     false);
-        let vals = catch.landing_pad(lpad_ty, bcx.ccx.eh_personality(), 1, catch.llfn());
+        let vals = catch.landing_pad(lpad_ty, bcx.ccx.eh_personality(), 1);
         catch.add_clause(vals, C_null(Type::i8p(ccx)));
         let ptr = catch.extract_value(vals, 0);
         let ptr_align = bcx.tcx().data_layout.pointer_align;
diff --git a/src/librustc_trans/mir/block.rs b/src/librustc_trans/mir/block.rs
index 422b8210b354..8c9fb0395458 100644
--- a/src/librustc_trans/mir/block.rs
+++ b/src/librustc_trans/mir/block.rs
@@ -753,7 +753,7 @@ impl<'a, 'tcx> MirContext<'a, 'tcx> {
 
         let llpersonality = self.ccx.eh_personality();
         let llretty = self.landing_pad_type();
-        let lp = bcx.landing_pad(llretty, llpersonality, 1, self.llfn);
+        let lp = bcx.landing_pad(llretty, llpersonality, 1);
         bcx.set_cleanup(lp);
 
         let slot = self.get_personality_slot(&bcx);
diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs
index a2022a2eeb23..a19fe825f21f 100644
--- a/src/libstd/ffi/c_str.rs
+++ b/src/libstd/ffi/c_str.rs
@@ -706,7 +706,7 @@ impl From<CString> for Box<CStr> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl From<CString> for Arc<CStr> {
     #[inline]
     fn from(s: CString) -> Arc<CStr> {
@@ -715,7 +715,7 @@ impl From<CString> for Arc<CStr> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl<'a> From<&'a CStr> for Arc<CStr> {
     #[inline]
     fn from(s: &CStr) -> Arc<CStr> {
@@ -724,7 +724,7 @@ impl<'a> From<&'a CStr> for Arc<CStr> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl From<CString> for Rc<CStr> {
     #[inline]
     fn from(s: CString) -> Rc<CStr> {
@@ -733,7 +733,7 @@ impl From<CString> for Rc<CStr> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl<'a> From<&'a CStr> for Rc<CStr> {
     #[inline]
     fn from(s: &CStr) -> Rc<CStr> {
diff --git a/src/libstd/ffi/os_str.rs b/src/libstd/ffi/os_str.rs
index cb902461f39f..109173d31c50 100644
--- a/src/libstd/ffi/os_str.rs
+++ b/src/libstd/ffi/os_str.rs
@@ -594,7 +594,7 @@ impl From<OsString> for Box<OsStr> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl From<OsString> for Arc<OsStr> {
     #[inline]
     fn from(s: OsString) -> Arc<OsStr> {
@@ -603,7 +603,7 @@ impl From<OsString> for Arc<OsStr> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl<'a> From<&'a OsStr> for Arc<OsStr> {
     #[inline]
     fn from(s: &OsStr) -> Arc<OsStr> {
@@ -612,7 +612,7 @@ impl<'a> From<&'a OsStr> for Arc<OsStr> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl From<OsString> for Rc<OsStr> {
     #[inline]
     fn from(s: OsString) -> Rc<OsStr> {
@@ -621,7 +621,7 @@ impl From<OsString> for Rc<OsStr> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl<'a> From<&'a OsStr> for Rc<OsStr> {
     #[inline]
     fn from(s: &OsStr) -> Rc<OsStr> {
diff --git a/src/libstd/path.rs b/src/libstd/path.rs
index eb125a4737a1..bed9efcb8469 100644
--- a/src/libstd/path.rs
+++ b/src/libstd/path.rs
@@ -1454,7 +1454,7 @@ impl<'a> From<PathBuf> for Cow<'a, Path> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl From<PathBuf> for Arc<Path> {
     #[inline]
     fn from(s: PathBuf) -> Arc<Path> {
@@ -1463,7 +1463,7 @@ impl From<PathBuf> for Arc<Path> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl<'a> From<&'a Path> for Arc<Path> {
     #[inline]
     fn from(s: &Path) -> Arc<Path> {
@@ -1472,7 +1472,7 @@ impl<'a> From<&'a Path> for Arc<Path> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl From<PathBuf> for Rc<Path> {
     #[inline]
     fn from(s: PathBuf) -> Rc<Path> {
@@ -1481,7 +1481,7 @@ impl From<PathBuf> for Rc<Path> {
     }
 }
 
-#[stable(feature = "shared_from_slice2", since = "1.23.0")]
+#[stable(feature = "shared_from_slice2", since = "1.24.0")]
 impl<'a> From<&'a Path> for Rc<Path> {
     #[inline]
     fn from(s: &Path) -> Rc<Path> {
diff --git a/src/libstd/sync/mutex.rs b/src/libstd/sync/mutex.rs
index 81f5594bc523..3b4904c98e87 100644
--- a/src/libstd/sync/mutex.rs
+++ b/src/libstd/sync/mutex.rs
@@ -382,7 +382,7 @@ unsafe impl<#[may_dangle] T: ?Sized> Drop for Mutex<T> {
     }
 }
 
-#[stable(feature = "mutex_from", since = "1.22.0")]
+#[stable(feature = "mutex_from", since = "1.24.0")]
 impl<T> From<T> for Mutex<T> {
     /// Creates a new mutex in an unlocked state ready for use.
     /// This is equivalent to [`Mutex::new`].
diff --git a/src/libstd/sync/rwlock.rs b/src/libstd/sync/rwlock.rs
index fd6cff6b69c4..0f3f4e50f7e3 100644
--- a/src/libstd/sync/rwlock.rs
+++ b/src/libstd/sync/rwlock.rs
@@ -457,7 +457,7 @@ impl<T: Default> Default for RwLock<T> {
     }
 }
 
-#[stable(feature = "rw_lock_from", since = "1.22.0")]
+#[stable(feature = "rw_lock_from", since = "1.24.0")]
 impl<T> From<T> for RwLock<T> {
     /// Creates a new instance of an `RwLock<T>` which is unlocked.
     /// This is equivalent to [`RwLock::new`].
diff --git a/src/rustllvm/RustWrapper.cpp b/src/rustllvm/RustWrapper.cpp
index 6f51ea67cb1d..96fb05ee06e3 100644
--- a/src/rustllvm/RustWrapper.cpp
+++ b/src/rustllvm/RustWrapper.cpp
@@ -1144,13 +1144,6 @@ extern "C" void LLVMRustWriteSMDiagnosticToString(LLVMSMDiagnosticRef D,
   unwrap(D)->print("", OS);
 }
 
-extern "C" LLVMValueRef
-LLVMRustBuildLandingPad(LLVMBuilderRef B, LLVMTypeRef Ty,
-                        LLVMValueRef PersFn, unsigned NumClauses,
-                        const char *Name, LLVMValueRef F) {
-  return LLVMBuildLandingPad(B, Ty, PersFn, NumClauses, Name);
-}
-
 extern "C" LLVMValueRef LLVMRustBuildCleanupPad(LLVMBuilderRef B,
                                                 LLVMValueRef ParentPad,
                                                 unsigned ArgCount,
@@ -1355,10 +1348,6 @@ extern "C" bool LLVMRustConstInt128Get(LLVMValueRef CV, bool sext, uint64_t *hig
     return true;
 }
 
-extern "C" LLVMContextRef LLVMRustGetValueContext(LLVMValueRef V) {
-  return wrap(&unwrap(V)->getContext());
-}
-
 enum class LLVMRustVisibility {
   Default = 0,
   Hidden = 1,
@@ -1439,11 +1428,6 @@ LLVMRustModuleBufferLen(const LLVMRustModuleBuffer *Buffer) {
 
 extern "C" uint64_t
 LLVMRustModuleCost(LLVMModuleRef M) {
-  Module &Mod = *unwrap(M);
-  uint64_t cost = 0;
-  for (auto &F : Mod.functions()) {
-    (void)F;
-    cost += 1;
-  }
-  return cost;
+  auto f = unwrap(M)->functions();
+  return std::distance(std::begin(f), std::end(f));
 }