include rust-shed in edenscm builds

Summary: They will be used by upcoming changes.

Reviewed By: DurhamG

Differential Revision: D30005548

fbshipit-source-id: 6154069f7dfd9b3c9b1b1a7ea3552081c7d1641e

build/fbcode_builder/manifests/eden_scm

@@ -28,6 +28,7 @@ install-getdeps
 test-getdeps
 
 [shipit.pathmap]
+fbcode/common/rust = common/rust
 fbcode/eden/oss = .
 fbcode/eden = eden
 fbcode/tools/lfs = tools/lfs