Rollup merge of rust-lang#35912 - brson:rust-installer, r=alexcrichton

GuillaumeGomez · web-flow · commit 21d4ec9120ea · 2016-08-23T22:48:02.000+02:00
Update rust-installer. Fixes rust-lang#35840 cc @Diggsey
diff --git a/src/rust-installer b/src/rust-installer
@@ -1 +1 @@
-Subproject commit c37d3747da75c280237dc2d6b925078e69555499
+Subproject commit 755bc3db4ff795865ea31b5b4f38ac920d8acacb
