diff --git a/RELEASES.md b/RELEASES.md
index 6492f72..cf5eccb 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,3 +1,11 @@
+Version 1.29.2 (2018-10-11)
+===========================
+
+- [Workaround for an aliasing-related LLVM bug, which caused miscompilation.][54639]
+- The `rls-preview` component on the windows-gnu targets has been restored.
+
+[54639]: https://github.com/rust-lang/rust/pull/54639
+
 Version 1.29.1 (2018-09-25)
 ===========================
 
@@ -44,6 +52,8 @@
   using `--target`][cargo/5614]
 - [Added the `cargo-fix` subcommand to automatically move project code from
   2015 edition to 2018.][cargo/5723]
+- [`cargo doc` can now optionally document private types using the
+  `--document-private-items` flag.][cargo/5543]
 
 Misc
 ----
@@ -81,6 +91,7 @@
 [51178]: https://github.com/rust-lang/rust/pull/51178/
 [51122]: https://github.com/rust-lang/rust/pull/51122
 [50494]: https://github.com/rust-lang/rust/pull/50494/
+[cargo/5543]: https://github.com/rust-lang/cargo/pull/5543
 [cargo/5614]: https://github.com/rust-lang/cargo/pull/5614/
 [cargo/5723]: https://github.com/rust-lang/cargo/pull/5723/
 [cargo/5831]: https://github.com/rust-lang/cargo/pull/5831/
diff --git a/src/Cargo.lock b/src/Cargo.lock
index 64f6b71..a73accc 100644
--- a/src/Cargo.lock
+++ b/src/Cargo.lock
@@ -20,7 +20,7 @@
 version = "0.0.0"
 dependencies = [
  "build_helper 0.1.0",
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "compiler_builtins 0.0.0",
  "core 0.0.0",
  "libc 0.0.0",
@@ -90,7 +90,7 @@
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -102,7 +102,7 @@
 dependencies = [
  "backtrace-sys 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-demangle 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -112,8 +112,8 @@
 version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -131,12 +131,12 @@
 version = "0.0.0"
 dependencies = [
  "build_helper 0.1.0",
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "cmake 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "filetime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "petgraph 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "pretty_assertions 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -196,8 +196,8 @@
  "jobserver 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazycell 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "libgit2-sys 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libgit2-sys 0.7.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -243,8 +243,8 @@
  "jobserver 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazycell 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "libgit2-sys 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libgit2-sys 0.7.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -297,7 +297,7 @@
 
 [[package]]
 name = "cc"
-version = "1.0.18"
+version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -401,7 +401,7 @@
 version = "0.1.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -425,14 +425,14 @@
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "compiler_builtins"
 version = "0.0.0"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "core 0.0.0",
 ]
 
@@ -445,7 +445,7 @@
  "filetime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -464,7 +464,7 @@
  "diff 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "filetime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -487,7 +487,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "core-foundation-sys 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -496,7 +496,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "core-foundation-sys 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -504,7 +504,7 @@
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -624,9 +624,9 @@
 version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "curl-sys 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl-sys 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "schannel 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -636,12 +636,12 @@
 
 [[package]]
 name = "curl-sys"
-version = "0.4.7"
+version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "libz-sys 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libz-sys 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -789,7 +789,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -803,7 +803,7 @@
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "miniz-sys 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -834,7 +834,7 @@
 version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -891,8 +891,8 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "libgit2-sys 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libgit2-sys 0.7.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.35 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1039,7 +1039,7 @@
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1062,7 +1062,7 @@
 version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1133,32 +1133,31 @@
 
 [[package]]
 name = "libc"
-version = "0.2.42"
+version = "0.2.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.7.6"
+version = "0.7.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "cmake 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "curl-sys 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "libssh2-sys 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "libz-sys 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl-sys 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libssh2-sys 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libz-sys 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "libssh2-sys"
-version = "0.2.8"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cmake 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "libz-sys 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libz-sys 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1166,11 +1165,11 @@
 
 [[package]]
 name = "libz-sys"
-version = "1.0.18"
+version = "1.0.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1208,9 +1207,9 @@
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "filetime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1277,7 +1276,7 @@
 version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1285,7 +1284,7 @@
 version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1307,8 +1306,8 @@
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1376,7 +1375,7 @@
 version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1393,7 +1392,7 @@
  "cfg-if 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1415,8 +1414,8 @@
 version = "0.9.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-src 110.0.5+1.1.0h (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1474,7 +1473,7 @@
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1602,7 +1601,7 @@
 name = "profiler_builtins"
 version = "0.0.0"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "compiler_builtins 0.0.0",
  "core 0.0.0",
 ]
@@ -1670,7 +1669,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1681,7 +1680,7 @@
 dependencies = [
  "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1707,7 +1706,7 @@
 dependencies = [
  "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2129,7 +2128,7 @@
 dependencies = [
  "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2198,11 +2197,11 @@
 version = "0.0.0"
 dependencies = [
  "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "flate2 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "jobserver 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc 0.0.0",
@@ -2341,8 +2340,8 @@
 dependencies = [
  "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "build_helper 0.1.0",
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_cratesio_shim 0.0.0",
 ]
 
@@ -2702,7 +2701,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2720,7 +2719,7 @@
  "alloc_jemalloc 0.0.0",
  "alloc_system 0.0.0",
  "build_helper 0.1.0",
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "compiler_builtins 0.0.0",
  "core 0.0.0",
  "libc 0.0.0",
@@ -2889,7 +2888,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "filetime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "xattr 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2899,7 +2898,7 @@
 version = "3.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2950,7 +2949,7 @@
 version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2994,7 +2993,7 @@
 version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3194,7 +3193,7 @@
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3226,7 +3225,7 @@
 "checksum cargo 0.28.0 (registry+https://github.com/rust-lang/crates.io-index)" = "21dd0ac7737313b8c5c6fbfaf351aa93d4e90f66d4a33a11d1f3fb29584ac631"
 "checksum cargo_metadata 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)" = "1efca0b863ca03ed4c109fb1c55e0bc4bbeb221d3e103d86251046b06a526bd0"
 "checksum cargo_metadata 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2d6809b327f87369e6f3651efd2c5a96c49847a3ed2559477ecba79014751ee1"
-"checksum cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)" = "2119ea4867bd2b8ed3aecab467709720b2d55b1bcfe09f772fd68066eaf15275"
+"checksum cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)" = "f159dfd43363c4d08055a07703eb7a3406b0dac4d0584d96965a3262db3c9d16"
 "checksum cfg-if 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "efe5c877e17a9c717a0bf3613b2709f723202c4e4675cc8f12926ded29bcb17e"
 "checksum chalk-engine 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a146c19172c7eea48ea55a7123ac95da786639bc665097f1e14034ee5f1d8699"
 "checksum chalk-macros 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "295635afd6853aa9f20baeb7f0204862440c0fe994c5a253d5f479dac41d047e"
@@ -3253,7 +3252,7 @@
 "checksum crossbeam-utils 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "677d453a17e8bd2b913fa38e8b9cf04bcdbb5be790aa294f2389661d72036015"
 "checksum crypto-hash 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "09de9ee0fc255ace04c7fa0763c9395a945c37c8292bb554f8d48361d1dcf1b4"
 "checksum curl 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)" = "893713db705eab9847e050268507b0e2a2aad64e90a831874bd4e8e0d67f9523"
-"checksum curl-sys 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "de9cf174efdf90b5887c4e2e900769373c89c5e18152e8f3ed75b501a6f1c0fb"
+"checksum curl-sys 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)" = "78800a6de442f65dab6ce26c6f369c14fc585686432bf4b77119d2d384216c31"
 "checksum datafrog 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "16d724bf4ffe77cdceeecd461009b5f8d9e23c5d645d68bedb4586bf43e7e142"
 "checksum derive-new 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "899ec79626c14e00ccc9729b4d750bbe67fe76a8f436824c16e0233bbd9d7daa"
 "checksum derive_more 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "46c7f14685a20f5dd08e7f754f2ea8cc064d8f4214ae21116c106a2768ba7b9b"
@@ -3307,10 +3306,10 @@
 "checksum lazy_static 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "fb497c35d362b6a331cfd94956a07fc2c78a4604cdbee844a81170386b996dd3"
 "checksum lazycell 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a6f08839bc70ef4a3fe1d566d5350f519c5912ea86be0df1740a7d247c7fc0ef"
 "checksum lazycell 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d33a48d0365c96081958cc663eef834975cb1e8d8bea3378513fc72bdbf11e50"
-"checksum libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)" = "b685088df2b950fccadf07a7187c8ef846a959c142338a48f9dc0b94517eb5f1"
-"checksum libgit2-sys 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c9051a4b288ba6f8728e9e52bb2510816946b8bcb2e20259e4d4cdc93b9ecafd"
-"checksum libssh2-sys 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "c628b499e8d1a4f4bd09a95d6cb1f8aeb231b46a9d40959bbd0408f14dd63adf"
-"checksum libz-sys 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)" = "87f737ad6cc6fd6eefe3d9dc5412f1573865bded441300904d2f42269e140f16"
+"checksum libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)" = "76e3a3ef172f1a0b9a9ff0dd1491ae5e6c948b94479a3021819ba7d860c8645d"
+"checksum libgit2-sys 0.7.9 (registry+https://github.com/rust-lang/crates.io-index)" = "93f2b22fce91fb820363cf88a849a8f8fdfd8be37774b6a9dd6cbda05cf940e6"
+"checksum libssh2-sys 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "126a1f4078368b163bfdee65fbab072af08a1b374a5551b21e87ade27b1fbf9d"
+"checksum libz-sys 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)" = "c7bdca442aa002a930e6eb2a71916cabe46d91ffec8df66db0abfb1bc83469ab"
 "checksum log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
 "checksum log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "61bd98ae7f7b754bc53dca7d44b604f733c6bba044ea6f41bc8d89272d8161d2"
 "checksum log_settings 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "19af41f0565d7c19b2058153ad0b42d4d5ce89ec4dbf06ed6741114a8b63e7cd"
diff --git a/src/bootstrap/channel.rs b/src/bootstrap/channel.rs
index e9540d6..c9f72d2 100644
--- a/src/bootstrap/channel.rs
+++ b/src/bootstrap/channel.rs
@@ -24,7 +24,7 @@
 use config::Config;
 
 // The version number
-pub const CFG_RELEASE_NUM: &str = "1.29.1";
+pub const CFG_RELEASE_NUM: &str = "1.29.2";
 
 pub struct GitInfo {
     inner: Option<Info>,
diff --git a/src/librustc_codegen_llvm/type_of.rs b/src/librustc_codegen_llvm/type_of.rs
index 4728d77..751c4ea 100644
--- a/src/librustc_codegen_llvm/type_of.rs
+++ b/src/librustc_codegen_llvm/type_of.rs
@@ -10,11 +10,9 @@
 
 use abi::{FnType, FnTypeExt};
 use common::*;
-use llvm;
 use rustc::hir;
 use rustc::ty::{self, Ty, TypeFoldable};
 use rustc::ty::layout::{self, Align, LayoutOf, Size, TyLayout};
-use rustc_target::spec::PanicStrategy;
 use rustc_target::abi::FloatTy;
 use rustc_mir::monomorphize::item::DefPathBasedNames;
 use type_::Type;
@@ -429,12 +427,19 @@
                         PointerKind::Shared
                     },
                     hir::MutMutable => {
-                        // Only emit noalias annotations for LLVM >= 6 or in panic=abort
-                        // mode, as prior versions had many bugs in conjunction with
-                        // unwinding. See also issue #31681.
+                        // Previously we would only emit noalias annotations for LLVM >= 6 or in
+                        // panic=abort mode. That was deemed right, as prior versions had many bugs
+                        // in conjunction with unwinding, but later versions didn’t seem to have
+                        // said issues. See issue #31681.
+                        //
+                        // Alas, later on we encountered a case where noalias would generate wrong
+                        // code altogether even with recent versions of LLVM in *safe* code with no
+                        // unwinding involved. See #54462.
+                        //
+                        // For now, do not enable mutable_noalias by default at all, while the
+                        // issue is being figured out.
                         let mutable_noalias = cx.tcx.sess.opts.debugging_opts.mutable_noalias
-                            .unwrap_or(unsafe { llvm::LLVMRustVersionMajor() >= 6 }
-                                || cx.tcx.sess.panic_strategy() == PanicStrategy::Abort);
+                            .unwrap_or(false);
                         if mutable_noalias {
                             PointerKind::UniqueBorrowed
                         } else {
diff --git a/src/test/codegen/function-arguments.rs b/src/test/codegen/function-arguments.rs
index 0bd021f..5061d9a 100644
--- a/src/test/codegen/function-arguments.rs
+++ b/src/test/codegen/function-arguments.rs
@@ -53,13 +53,13 @@
 pub fn unsafe_borrow(_: &UnsafeInner) {
 }
 
-// CHECK: @mutable_unsafe_borrow(i16* noalias dereferenceable(2) %arg0)
+// CHECK: @mutable_unsafe_borrow(i16* dereferenceable(2) %arg0)
 // ... unless this is a mutable borrow, those never alias
 #[no_mangle]
 pub fn mutable_unsafe_borrow(_: &mut UnsafeInner) {
 }
 
-// CHECK: @mutable_borrow(i32* noalias dereferenceable(4) %arg0)
+// CHECK: @mutable_borrow(i32* dereferenceable(4) %arg0)
 // FIXME #25759 This should also have `nocapture`
 #[no_mangle]
 pub fn mutable_borrow(_: &mut i32) {
@@ -102,7 +102,7 @@
 pub fn slice(_: &[u8]) {
 }
 
-// CHECK: @mutable_slice([0 x i8]* noalias nonnull %arg0.0, [[USIZE]] %arg0.1)
+// CHECK: @mutable_slice([0 x i8]* nonnull %arg0.0, [[USIZE]] %arg0.1)
 // FIXME #25759 This should also have `nocapture`
 #[no_mangle]
 pub fn mutable_slice(_: &mut [u8]) {
diff --git a/src/test/run-pass/issue-54462-mutable-noalias-correctness.rs b/src/test/run-pass/issue-54462-mutable-noalias-correctness.rs
new file mode 100644
index 0000000..f0e52b2
--- /dev/null
+++ b/src/test/run-pass/issue-54462-mutable-noalias-correctness.rs
@@ -0,0 +1,33 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+//
+// compile-flags: -Ccodegen-units=1 -O
+
+fn linidx(row: usize, col: usize) -> usize {
+    row * 1 + col * 3
+}
+
+fn main() {
+    let mut mat = [1.0f32, 5.0, 9.0, 2.0, 6.0, 10.0, 3.0, 7.0, 11.0, 4.0, 8.0, 12.0];
+
+    for i in 0..2 {
+        for j in i+1..3 {
+            if mat[linidx(j, 3)] > mat[linidx(i, 3)] {
+                    for k in 0..4 {
+                            let (x, rest) = mat.split_at_mut(linidx(i, k) + 1);
+                            let a = x.last_mut().unwrap();
+                            let b = rest.get_mut(linidx(j, k) - linidx(i, k) - 1).unwrap();
+                            ::std::mem::swap(a, b);
+                    }
+            }
+        }
+    }
+    assert_eq!([9.0, 5.0, 1.0, 10.0, 6.0, 2.0, 11.0, 7.0, 3.0, 12.0, 8.0, 4.0], mat);
+}