Rollup merge of #26943 - brson:installer, r=alexcrichton

Manishearth · Manishearth · commit a36411d9db6a · 2015-07-11T18:40:13.000+05:30
diff --git a/src/rust-installer b/src/rust-installer
@@ -1 +1 @@
-Subproject commit 0da191a30ba385215c5eb1dc97c2b5f076f93b07
+Subproject commit c37d3747da75c280237dc2d6b925078e69555499
