fix rebase issue

Author: TroyKomodo

rust/private/rust.bzl

@@ -420,7 +420,7 @@ def _rust_test_impl(ctx):
         crate_info_dict = dict(
             name = crate_name,
             type = crate_type,
-            root = crate_root,
+            root = crate.root,
             srcs = depset(srcs),
             deps = depset(deps, transitive = [crate.deps]).to_list(),
             proc_macro_deps = depset(proc_macro_deps, transitive = [crate.proc_macro_deps]).to_list(),