Run Rust recipe steps on Mac CI/CQ builders and 32-bit Linux

For completeness' sake. Will revert any that don't just work.

Change-Id: I58ccbf971e573c8886320c4e7301026ab12748ca
Bug: 42290446
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/81027
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>

infra/config/generated/cr-buildbucket.cfg

diff --git a/infra/config/generated/cr-buildbucket.cfg b/infra/config/generated/cr-buildbucket.cfg
index 9373c0b..49462ac 100644
--- a/infra/config/generated/cr-buildbucket.cfg
+++ b/infra/config/generated/cr-buildbucket.cfg
@@ -538,9 +538,11 @@
         '    "CMAKE_CXX_FLAGS": "-m32 -msse2",'
         '    "CMAKE_C_FLAGS": "-m32 -msse2",'
         '    "CMAKE_SYSTEM_NAME": "Linux",'
-        '    "CMAKE_SYSTEM_PROCESSOR": "x86"'
+        '    "CMAKE_SYSTEM_PROCESSOR": "x86",'
+        '    "RUST_BINDINGS": "i686-unknown-linux-gnu"'
         '  },'
-        '  "recipe": "boringssl"'
+        '  "recipe": "boringssl",'
+        '  "rust": true'
         '}'
       execution_timeout_secs: 1800
       caches {
@@ -1417,7 +1419,11 @@
         '  "$gatekeeper": {'
         '    "group": "client.boringssl"'
         '  },'
-        '  "recipe": "boringssl"'
+        '  "cmake_args": {'
+        '    "RUST_BINDINGS": "x86_64-apple-darwin"'
+        '  },'
+        '  "recipe": "boringssl",'
+        '  "rust": true'
         '}'
       execution_timeout_secs: 3600
       caches {
@@ -1454,7 +1460,11 @@
         '  "$gatekeeper": {'
         '    "group": "client.boringssl"'
         '  },'
-        '  "recipe": "boringssl"'
+        '  "cmake_args": {'
+        '    "RUST_BINDINGS": "aarch64-apple-darwin"'
+        '  },'
+        '  "recipe": "boringssl",'
+        '  "rust": true'
         '}'
       execution_timeout_secs: 3600
       caches {
@@ -2780,9 +2790,11 @@
         '    "CMAKE_CXX_FLAGS": "-m32 -msse2",'
         '    "CMAKE_C_FLAGS": "-m32 -msse2",'
         '    "CMAKE_SYSTEM_NAME": "Linux",'
-        '    "CMAKE_SYSTEM_PROCESSOR": "x86"'
+        '    "CMAKE_SYSTEM_PROCESSOR": "x86",'
+        '    "RUST_BINDINGS": "i686-unknown-linux-gnu"'
         '  },'
-        '  "recipe": "boringssl"'
+        '  "recipe": "boringssl",'
+        '  "rust": true'
         '}'
       execution_timeout_secs: 1800
       service_account: "boringssl-try-builder@chops-service-accounts.iam.gserviceaccount.com"
@@ -3406,7 +3418,11 @@
       }
       properties:
         '{'
-        '  "recipe": "boringssl"'
+        '  "cmake_args": {'
+        '    "RUST_BINDINGS": "x86_64-apple-darwin"'
+        '  },'
+        '  "recipe": "boringssl",'
+        '  "rust": true'
         '}'
       execution_timeout_secs: 3600
       caches {
@@ -3432,7 +3448,11 @@
       }
       properties:
         '{'
-        '  "recipe": "boringssl"'
+        '  "cmake_args": {'
+        '    "RUST_BINDINGS": "aarch64-apple-darwin"'
+        '  },'
+        '  "recipe": "boringssl",'
+        '  "rust": true'
         '}'
       execution_timeout_secs: 3600
       caches {

infra/config/main.star

diff --git a/infra/config/main.star b/infra/config/main.star
index 6268016..570837a 100755
--- a/infra/config/main.star
+++ b/infra/config/main.star
@@ -589,7 +589,10 @@
             "CMAKE_ASM_FLAGS": "-m32 -msse2",
             "CMAKE_CXX_FLAGS": "-m32 -msse2",
             "CMAKE_C_FLAGS": "-m32 -msse2",
+            "RUST_BINDINGS": "i686-unknown-linux-gnu",
         },
+        # Also build and test the Rust code.
+        "rust": True,
     },
 )
 both_builders(
@@ -891,7 +894,19 @@
     short_name = "bzl",
     recipe = "boringssl_bazel",
 )
-both_builders("mac", MAC_X86_64_HOST, category = "mac", short_name = "dbg")
+both_builders(
+    "mac",
+    MAC_X86_64_HOST,
+    category = "mac",
+    short_name = "dbg",
+    properties = {
+        "cmake_args": {
+            "RUST_BINDINGS": "x86_64-apple-darwin",
+        },
+        # Also build and test the Rust code.
+        "rust": True,
+    },
+)
 both_builders(
     "mac_rel",
     MAC_X86_64_HOST,
@@ -915,7 +930,19 @@
         },
     },
 )
-both_builders("mac_arm64", MAC_ARM64_HOST, category = "mac", short_name = "arm64")
+both_builders(
+    "mac_arm64",
+    MAC_ARM64_HOST,
+    category = "mac",
+    short_name = "arm64",
+    properties = {
+        "cmake_args": {
+            "RUST_BINDINGS": "aarch64-apple-darwin",
+        },
+        # Also build and test the Rust code.
+        "rust": True,
+    },
+)
 both_builders(
     "mac_arm64_bazel",
     MAC_ARM64_HOST,