Squashed 'third_party/rules_rust/' content from commit bf59038ca

git-subtree-dir: third_party/rules_rust
git-subtree-split: bf59038cac11798cbaef9f3bf965bad8182b97fa
Signed-off-by: Brian Silverman <bsilver16384@gmail.com>
Change-Id: I5a20e403203d670df467ea97dde9a4ac40339a8d
diff --git a/rust/BUILD.bazel b/rust/BUILD.bazel
new file mode 100644
index 0000000..6fd4ced
--- /dev/null
+++ b/rust/BUILD.bazel
@@ -0,0 +1,30 @@
+load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
+
+package(default_visibility = ["//visibility:public"])
+
+exports_files([
+    "known_shas.bzl",
+    "repositories.bzl",
+    "defs.bzl",
+    "toolchain.bzl",
+])
+
+toolchain_type(
+    name = "toolchain",
+)
+
+bzl_library(
+    name = "bzl_lib",
+    srcs = glob(["**/*.bzl"]),
+    deps = [
+        "//rust/platform:bzl_lib",
+        "//rust/private:bzl_lib",
+        "//rust/settings:bzl_lib",
+    ],
+)
+
+alias(
+    name = "rules",
+    actual = ":bzl_lib",
+    deprecation = "Please use the `@rules_rust//rust:bzl_lib` target instead",
+)