Auto merge of #37597 - alexcrichton:rollup, r=alexcrichton

Rollup of 24 pull requests

- Successful merges: #37255, #37317, #37408, #37410, #37422, #37427, #37470, #37501, #37537, #37556, #37557, #37564, #37565, #37566, #37569, #37574, #37577, #37579, #37583, #37585, #37586, #37587, #37589, #37596
- Failed merges: #37521, #37547

Author: bors

README.md

@@ -127,7 +127,7 @@ ones from MSYS if you have it installed). You'll also need Visual Studio 2013 or
 newer with the C++ tools. Then all you need to do is to kick off rustbuild.
 
 ```
-python .\src\bootstrap\bootstrap.py
+python x.py build
 ```
 
 Currently rustbuild only works with some known versions of Visual Studio. If you
@@ -137,7 +137,7 @@ by manually calling the appropriate vcvars file before running the bootstrap.
 
 ```
 CALL "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\amd64\vcvars64.bat"
-python .\src\bootstrap\bootstrap.py
+python x.py build
 ```
 
 ## Building Documentation

RELEASES.md

@@ -1,3 +1,30 @@
+Version 1.12.1 (2016-10-20)
+===========================
+
+Regression Fixes
+----------------
+
+* [ICE: 'rustc' panicked at 'assertion failed: concrete_substs.is_normalized_for_trans()' #36381][36381]
+* [Confusion with double negation and booleans][36856]
+* [rustc 1.12.0 fails with SIGSEGV in release mode (syn crate 0.8.0)][36875]
+* [Rustc 1.12.0 Windows build of `ethcore` crate fails with LLVM error][36924]
+* [1.12.0: High memory usage when linking in release mode with debug info][36926]
+* [Corrupted memory after updated to 1.12][36936]
+* ["Let NullaryConstructor = something;" causes internal compiler error: "tried to overwrite interned AdtDef"][37026]
+* [Fix ICE: inject bitcast if types mismatch for invokes/calls/stores][37112]
+* [debuginfo: Handle spread_arg case in MIR-trans in a more stable way.][37153]
+
+[36381]: https://github.com/rust-lang/rust/issues/36381
+[36856]: https://github.com/rust-lang/rust/issues/36856
+[36875]: https://github.com/rust-lang/rust/issues/36875
+[36924]: https://github.com/rust-lang/rust/issues/36924
+[36926]: https://github.com/rust-lang/rust/issues/36926
+[36936]: https://github.com/rust-lang/rust/issues/36936
+[37026]: https://github.com/rust-lang/rust/issues/37026
+[37112]: https://github.com/rust-lang/rust/issues/37112
+[37153]: https://github.com/rust-lang/rust/issues/37153
+
+
 Version 1.12.0 (2016-09-29)
 ===========================