Upgrade rust-installer. Fixes install on Fedora-based Linuxes.

brson · brson · commit e6d3780e229b · 2015-07-10T11:33:29.000-07:00
diff --git a/src/rust-installer b/src/rust-installer
@@ -1 +1 @@
-Subproject commit 0da191a30ba385215c5eb1dc97c2b5f076f93b07
+Subproject commit c37d3747da75c280237dc2d6b925078e69555499
