Update rules_rust to v0.8.1 (with Rust v1.62.1). (#297)

Signed-off-by: Piotr Sikora <piotrsikora@google.com>

Author: PiotrSikora

bazel/dependencies.bzl

@@ -34,7 +34,7 @@ def proxy_wasm_cpp_host_dependencies():
             "wasm32-unknown-unknown",
             "wasm32-wasi",
         ],
-        version = "1.60.0",
+        version = "1.62.1",
     )
     rust_repository_set(
         name = "rust_linux_s390x",
@@ -43,7 +43,7 @@ def proxy_wasm_cpp_host_dependencies():
             "wasm32-unknown-unknown",
             "wasm32-wasi",
         ],
-        version = "1.60.0",
+        version = "1.62.1",
     )
 
     zig_register_toolchains(

bazel/external/rules_rust.patch

@@ -0,0 +1,15 @@
+# https://github.com/bazelbuild/rules_rust/pull/1315
+
+diff --git a/rust/private/rustc.bzl b/rust/private/rustc.bzl
+index 6cdbefeb..284d4afa 100644
+--- a/rust/private/rustc.bzl
++++ b/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

bazel/repositories.bzl

@@ -66,10 +66,12 @@ def proxy_wasm_cpp_host_repositories():
     maybe(
         http_archive,
         name = "rules_rust",
-        sha256 = "0c57c91a20df12d2b1e5db6c58fd6df21bce0c73940eeafbcb87761c14c28878",
-        strip_prefix = "rules_rust-0.3.1",
+        sha256 = "f3d443e9ad1eca99fbcade1c649adbd8200753cf22e47846b3105a43a550273b",
+        strip_prefix = "rules_rust-0.8.1",
         # NOTE: Update Rust version in bazel/dependencies.bzl.
-        url = "https://github.com/bazelbuild/rules_rust/archive/0.3.1.tar.gz",
+        url = "https://github.com/bazelbuild/rules_rust/archive/0.8.1.tar.gz",
+        patches = ["@proxy_wasm_cpp_host//bazel/external:rules_rust.patch"],
+        patch_args = ["-p1"],
     )
 
     # Core.