chore: upgrade rules_rs to 0.0.64

.bazelrc

@@ -23,6 +23,14 @@ common --repo_env=BAZEL_NO_APPLE_CPP_TOOLCHAIN=1
 
 common:ci --toolchain_resolution_debug='@@bazel_tools//tools/cpp:toolchain_type'
 
+# rules_rs experimental toolchains require @llvm//constraints/libc:gnu.2.28 on the target
+# platform for gnu Linux targets. The auto-detected host platform doesn't include it, so we
+# use a custom platform that inherits host cpu/os constraints and adds gnu.2.28. This works
+# on both x86_64 and aarch64 Linux builders.
+# --enable_platform_specific_config (in defaults.bazelrc) makes this activate automatically on Linux.
+common:linux --platforms=//bazel/platforms:linux_gnu
+common:linux --host_platform=//bazel/platforms:linux_gnu
+
 common:release --build_tag_filters=release
 common:release --stamp
 common:release --compilation_mode=opt

MODULE.bazel

@@ -21,7 +21,7 @@ bazel_dep(name = "rules_pkg", version = "1.1.0")
 bazel_dep(name = "rules_python", version = "1.0.0")
 bazel_dep(name = "rules_shell", version = "0.6.1")
 bazel_dep(name = "tar.bzl", version = "0.5.5")
-bazel_dep(name = "with_cfg.bzl", version = "0.14.1")
+bazel_dep(name = "with_cfg.bzl", version = "0.14.6")
 
 bazel_lib_toolchains = use_extension("@tar.bzl//tar:extensions.bzl", "toolchains")
 use_repo(bazel_lib_toolchains, "bsd_tar_toolchains")
@@ -130,29 +130,29 @@ osx.from_archive(
         "https://github.com/joseluisq/macosx-sdks/releases/download/26.1/MacOSX26.1.sdk.tar.xz",
     ],
 )
+use_repo(osx, "macos_sdk")
 
-# Rust configuration
-bazel_dep(name = "rules_rust", version = "0.68.1", dev_dependency = IS_RELEASE)
+# Rust configuration (via rules_rs's bundled rules_rust)
+rules_rust_ext = use_extension(
+    "@rules_rs//rs:rules_rust.bzl",
+    "rules_rust",
+    dev_dependency = IS_RELEASE,
+)
+use_repo(rules_rust_ext, "rules_rust")
 
-rust = use_extension(
-    "@rules_rust//rust:extensions.bzl",
-    "rust",
+toolchains = use_extension(
+    "@rules_rs//rs/toolchains:module_extension.bzl",
+    "toolchains",
     dev_dependency = IS_RELEASE,
 )
-rust.toolchain(
+toolchains.toolchain(
     edition = "2024",
-    extra_target_triples = [
-        "aarch64-apple-darwin",
-        "x86_64-apple-darwin",
-        "aarch64-unknown-linux-musl",
-        "x86_64-unknown-linux-musl",
-    ],
-    versions = ["1.88.0"],
+    version = "1.88.0",
 )
-use_repo(rust, "rust_toolchains")
+use_repo(toolchains, "default_rust_toolchains")
 
 register_toolchains(
-    "@rust_toolchains//:all",
+    "@default_rust_toolchains//:all",
     dev_dependency = IS_RELEASE,
 )
 
@@ -163,7 +163,7 @@ bazel_dep(name = "bazel_env.bzl", version = "0.5.0", dev_dependency = IS_RELEASE
 bazel_dep(name = "bzip2", version = "1.0.8.bcr.3", dev_dependency = IS_RELEASE)
 bazel_dep(name = "gazelle", version = "0.47.0", dev_dependency = IS_RELEASE)
 bazel_dep(name = "rules_go", version = "0.60.0", dev_dependency = IS_RELEASE)
-bazel_dep(name = "rules_rs", version = "0.0.26", dev_dependency = IS_RELEASE)
+bazel_dep(name = "rules_rs", version = "0.0.64", dev_dependency = IS_RELEASE)
 bazel_dep(name = "xz", version = "5.4.5.bcr.7", dev_dependency = IS_RELEASE)
 bazel_dep(name = "zstd", version = "1.5.7", dev_dependency = IS_RELEASE)
 bazel_dep(name = "rules_multitool", version = "1.9.0", dev_dependency = IS_RELEASE)
@@ -183,8 +183,10 @@ crate.from_cargo(
     cargo_toml = "//:Cargo.toml",
     platform_triples = [
         "aarch64-apple-darwin",
+        "aarch64-unknown-linux-gnu",
         "aarch64-unknown-linux-musl",
         "x86_64-apple-darwin",
+        "x86_64-unknown-linux-gnu",
         "x86_64-unknown-linux-musl",
     ],
 )

bazel/platforms/BUILD.bazel

@@ -13,7 +13,10 @@ load("//bazel/platforms/config:defs.bzl", "linker_suffix", "platforms")
         "@platforms//os:{}".format(p.os),
         "@platforms//cpu:{}".format(p.cpu),
         "//bazel/platforms/linkers:{}".format(p.linker),
-    ],
+    ] + ([
+        "@llvm//constraints/libc:musl",
+        "@llvm//constraints/pie:off",
+    ] if p.os == "linux" else []),
     visibility = ["//visibility:public"],
 ) for p in platforms]
 
@@ -29,6 +32,18 @@ alias(
     visibility = ["//visibility:public"],
 )
 
+# A host-compatible Linux platform with glibc 2.28+, used as the build target
+# and exec platform on Linux. Inherits cpu/os from the auto-detected host so
+# it works on both x86_64 and aarch64 builders without separate entries.
+platform(
+    name = "linux_gnu",
+    constraint_values = [
+        "@llvm//constraints/libc:gnu.2.28",
+    ],
+    parents = ["@platforms//host"],
+    visibility = ["//visibility:public"],
+)
+
 platform(
     name = "rbe",
     constraint_values = [

e2e/.bazelrc

@@ -6,6 +6,13 @@ common --@rules_cc//cc/toolchains/args/archiver_flags:use_libtool_on_macos=false
 common --repo_env=BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN=1
 common --repo_env=BAZEL_NO_APPLE_CPP_TOOLCHAIN=1
 
+# rules_rs experimental toolchains require @llvm//constraints/libc:gnu.2.28 on the target
+# platform for gnu Linux targets. The auto-detected host platform doesn't include it, so we
+# use a custom platform that inherits host cpu/os constraints and adds gnu.2.28.
+common --enable_platform_specific_config
+common:linux --platforms=@aspect_rules_py//bazel/platforms:linux_gnu
+common:linux --host_platform=@aspect_rules_py//bazel/platforms:linux_gnu
+
 # Configure a default venv
 # common --@pypi//venv=say
 

e2e/cases/freethreaded-805/BUILD.bazel

@@ -3,6 +3,10 @@ load("@bazel_lib//lib:transitions.bzl", "platform_transition_test")
 
 platform(
     name = "freethreaded",
+    constraint_values = [
+        # rules_rs Rust toolchains for linux-gnu targets require gnu.2.28.
+        "@llvm//constraints/libc:gnu.2.28",
+    ],
     flags = [
         "--@aspect_rules_py//py/private/interpreter:freethreaded=true",
     ],

e2e/cases/interpreter-features-836/BUILD.bazel

@@ -9,6 +9,8 @@ platform(
     constraint_values = [
         "@platforms//os:linux",
         "@platforms//cpu:x86_64",
+        # rules_rs Rust toolchains for linux-gnu targets require gnu.2.28.
+        "@llvm//constraints/libc:gnu.2.28",
     ],
     flags = [
         "--@aspect_rules_py//py/private/interpreter:exclude_feature=turtle",

e2e/cases/oci/py_image_layer/BUILD.bazel

@@ -9,6 +9,8 @@ platform(
     constraint_values = [
         "@platforms//os:linux",
         "@platforms//cpu:aarch64",
+        # rules_rs Rust toolchains for linux-gnu targets require gnu.2.28.
+        "@llvm//constraints/libc:gnu.2.28",
     ],
 )
 
@@ -17,6 +19,8 @@ platform(
     constraint_values = [
         "@platforms//os:linux",
         "@platforms//cpu:x86_64",
+        # rules_rs Rust toolchains for linux-gnu targets require gnu.2.28.
+        "@llvm//constraints/libc:gnu.2.28",
     ],
 )
 

e2e/cases/oci/py_venv_image_layer/BUILD.bazel

@@ -10,6 +10,8 @@ platform(
     constraint_values = [
         "@platforms//os:linux",
         "@platforms//cpu:aarch64",
+        # rules_rs Rust toolchains for linux-gnu targets require gnu.2.28.
+        "@llvm//constraints/libc:gnu.2.28",
     ],
     flags = [
         "--@aspect_rules_py//uv/private/constraints/platform:platform_libc=glibc",
@@ -25,6 +27,8 @@ platform(
     constraint_values = [
         "@platforms//os:linux",
         "@platforms//cpu:x86_64",
+        # rules_rs Rust toolchains for linux-gnu targets require gnu.2.28.
+        "@llvm//constraints/libc:gnu.2.28",
     ],
     flags = [
         "--@aspect_rules_py//uv/private/constraints/platform:platform_libc=glibc",

e2e/cases/uv-deps-650/crossbuild/BUILD.bazel

@@ -10,6 +10,8 @@ platform(
     constraint_values = [
         "@platforms//os:linux",
         "@platforms//cpu:aarch64",
+        # rules_rs Rust toolchains for linux-gnu targets require gnu.2.28.
+        "@llvm//constraints/libc:gnu.2.28",
     ],
     flags = [
         "--@aspect_rules_py//uv/private/constraints/platform:platform_libc=glibc",
@@ -25,6 +27,8 @@ platform(
     constraint_values = [
         "@platforms//os:linux",
         "@platforms//cpu:x86_64",
+        # rules_rs Rust toolchains for linux-gnu targets require gnu.2.28.
+        "@llvm//constraints/libc:gnu.2.28",
     ],
     flags = [
         "--@aspect_rules_py//uv/private/constraints/platform:platform_libc=glibc",

py/tests/py-pex-binary/BUILD.bazel

@@ -46,6 +46,8 @@ platform(
     constraint_values = [
         "@platforms//os:linux",
         "@platforms//cpu:x86_64",
+        # rules_rs Rust toolchains for linux-gnu targets require gnu.2.28.
+        "@llvm//constraints/libc:gnu.2.28",
     ],
 )