Auto merge of #4659 - integer32llc:pin-nightly, r=alexcrichton

try pinning to a nightly of two weeks ago

This passed CI [over here](#4658) and should get the 32-bit windows cross compiling tests passing until someone figures out why rustc is broken for that purpose

r? @alexcrichton

cc rust-lang/rust#45500

Author: bors

.travis.yml

@@ -24,7 +24,7 @@ matrix:
 
     - env: TARGET=x86_64-unknown-linux-gnu
            ALT=i686-unknown-linux-gnu
-      rust: nightly
+      rust: nightly-2017-10-10
       install:
         - mdbook --help || cargo install mdbook --force
       script:

appveyor.yml

@@ -26,7 +26,7 @@ environment:
 
 install:
   - appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
-  - rustup-init.exe -y --default-host x86_64-pc-windows-msvc --default-toolchain nightly
+  - rustup-init.exe -y --default-host x86_64-pc-windows-msvc --default-toolchain nightly-2017-10-10
   - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
   - rustup target add %OTHER_TARGET%
   - rustc -V