deps: Bump rules_rust -> 0.8.1

bazel/repository_locations.bzl

@@ -1343,12 +1343,12 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         project_name = "Bazel rust rules",
         project_desc = "Bazel rust rules (used by Wasm)",
         project_url = "https://github.com/bazelbuild/rules_rust",
-        version = "0.3.1",
-        sha256 = "e074f1e203607c5fcd549929d956170346f8807d2bbaeb98b2ed213c37e0870f",
+        version = "0.8.1",
+        sha256 = "05e15e536cc1e5fd7b395d044fc2dabf73d2b27622fbc10504b7e48219bb09bc",
         urls = ["https://github.com/bazelbuild/rules_rust/releases/download/{version}/rules_rust-v{version}.tar.gz"],
         use_category = ["dataplane_ext"],
         extensions = ["envoy.wasm.runtime.wasmtime"],
-        release_date = "2022-04-26",
+        release_date = "2022-07-26",
         cpe = "N/A",
         license = "Apache-2.0",
         license_url = "https://github.com/bazelbuild/rules_rust/blob/{version}/LICENSE.txt",

bazel/rules_rust.patch

@@ -5,7 +5,7 @@
 @@ -269,6 +269,13 @@ def triple_to_constraint_set(target_triple):
              "@rules_rust//rust/platform/os:unknown",
          ]
- 
+
 +    # Workaround for https://github.com/bazelbuild/bazel/issues/14982
 +    if target_triple in ("armv7-linux-androideabi", "thumbv7neon-linux-androideabi"):
 +        return [
@@ -14,5 +14,18 @@
 +        ]
 +
      triple_struct = triple(target_triple)
- 
+
      constraint_set = []
+
+
+--- rust/private/rustc.bzl
++++ rust/private/rustc.bzl
+@@ -1024,7 +1024,7 @@ def rustc_compile_action(
+         ),
+     ]
+
+-    if crate_info.type in ["staticlib", "cdylib"]:
++    if crate_info.type in ["staticlib", "cdylib"] and not out_binary:
+         # These rules are not supposed to be depended on by other rust targets, and
+         # as such they shouldn't provide a CrateInfo. However, one may still want to
+         # write a rust_test for them, so we provide the CrateInfo wrapped in a provider