Use new no-std flag to cargo2android. am: 848421d1f0

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/ciborium-io/+/2584580

Change-Id: I7d3fa61a4bba6d59563067937f5ce96d2ff1c22e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

Android.bp

diff --git a/Android.bp b/Android.bp
index 1610254..530da7a 100644
--- a/Android.bp
+++ b/Android.bp
@@ -46,6 +46,10 @@
     srcs: ["src/lib.rs"],
     edition: "2021",
     features: ["alloc"],
+    apex_available: [
+        "//apex_available:platform",
+        "//apex_available:anyapex",
+    ],
     prefer_rlib: true,
     no_stdlibs: true,
     stdlibs: [
@@ -53,8 +57,6 @@
         "libcompiler_builtins.rust_sysroot",
         "libcore.rust_sysroot",
     ],
-    apex_available: [
-        "//apex_available:platform",
-        "//apex_available:anyapex",
-    ],
+    product_available: true,
+    vendor_available: true,
 }

cargo2android.json

diff --git a/cargo2android.json b/cargo2android.json
index eb19901..429052c 100644
--- a/cargo2android.json
+++ b/cargo2android.json
@@ -1,8 +1,18 @@
 {
-  "add-toplevel-block": "cargo2android_nostd.bp",
   "device": true,
-  "features": "alloc,std,",
   "run": true,
   "dependencies": true,
-  "vendor-available": true
+  "variants": [
+    {
+      "features": "alloc,std"
+    },
+    {
+      "alloc": true,
+      "features": "alloc",
+      "force-rlib": true,
+      "no-host": true,
+      "suffix": "_nostd",
+      "no-std": true
+    }
+  ]
 }

cargo2android_nostd.bp

diff --git a/cargo2android_nostd.bp b/cargo2android_nostd.bp
deleted file mode 100644
index 9712ce9..0000000
--- a/cargo2android_nostd.bp
+++ /dev/null
@@ -1,20 +0,0 @@
-rust_library_rlib {
-    name: "libciborium_io_nostd",
-    crate_name: "ciborium_io",
-    cargo_env_compat: true,
-    cargo_pkg_version: "0.2.0",
-    srcs: ["src/lib.rs"],
-    edition: "2021",
-    features: ["alloc"],
-    prefer_rlib: true,
-    no_stdlibs: true,
-    stdlibs: [
-        "liballoc.rust_sysroot",
-        "libcompiler_builtins.rust_sysroot",
-        "libcore.rust_sysroot",
-    ],
-    apex_available: [
-        "//apex_available:platform",
-        "//apex_available:anyapex",
-    ],
-}