diff --git a/Android.bp b/Android.bp
index 7058e6a..7e1ac13 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,4 +1,4 @@
-// This file is generated by cargo2android.py --run --dependencies --device.
+// This file is generated by cargo2android.py --config cargo2android.json.
 // Do not modify this file as changes will be overridden on upgrade.
 
 package {
@@ -23,6 +23,8 @@
 rust_proc_macro {
     name: "libasync_stream_impl",
     crate_name: "async_stream_impl",
+    cargo_env_compat: true,
+    cargo_pkg_version: "0.3.2",
     srcs: ["src/lib.rs"],
     edition: "2018",
     rustlibs: [
@@ -31,9 +33,3 @@
         "libsyn",
     ],
 }
-
-// dependent_library ["feature_list"]
-//   proc-macro2-1.0.27 "default,proc-macro"
-//   quote-1.0.9 "default,proc-macro"
-//   syn-1.0.73 "clone-impls,default,derive,extra-traits,full,parsing,printing,proc-macro,quote,visit-mut"
-//   unicode-xid-0.2.2 "default"
diff --git a/TEST_MAPPING b/TEST_MAPPING
index a83b104..dfc3524 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -1,212 +1,11 @@
 // Generated by update_crate_tests.py for tests that depend on this crate.
 {
-  "presubmit": [
+  "imports": [
     {
-      "name": "tokio-test_device_test_src_lib"
+      "path": "external/rust/crates/tokio"
     },
     {
-      "name": "tokio-test_device_test_tests_block_on"
-    },
-    {
-      "name": "tokio-test_device_test_tests_io"
-    },
-    {
-      "name": "tokio-test_device_test_tests_macros"
-    },
-    {
-      "name": "tokio_device_test_tests__require_full"
-    },
-    {
-      "name": "tokio_device_test_tests_buffered"
-    },
-    {
-      "name": "tokio_device_test_tests_io_async_fd"
-    },
-    {
-      "name": "tokio_device_test_tests_io_async_read"
-    },
-    {
-      "name": "tokio_device_test_tests_io_chain"
-    },
-    {
-      "name": "tokio_device_test_tests_io_copy"
-    },
-    {
-      "name": "tokio_device_test_tests_io_copy_bidirectional"
-    },
-    {
-      "name": "tokio_device_test_tests_io_driver"
-    },
-    {
-      "name": "tokio_device_test_tests_io_driver_drop"
-    },
-    {
-      "name": "tokio_device_test_tests_io_lines"
-    },
-    {
-      "name": "tokio_device_test_tests_io_mem_stream"
-    },
-    {
-      "name": "tokio_device_test_tests_io_read"
-    },
-    {
-      "name": "tokio_device_test_tests_io_read_buf"
-    },
-    {
-      "name": "tokio_device_test_tests_io_read_exact"
-    },
-    {
-      "name": "tokio_device_test_tests_io_read_line"
-    },
-    {
-      "name": "tokio_device_test_tests_io_read_to_end"
-    },
-    {
-      "name": "tokio_device_test_tests_io_read_to_string"
-    },
-    {
-      "name": "tokio_device_test_tests_io_read_until"
-    },
-    {
-      "name": "tokio_device_test_tests_io_split"
-    },
-    {
-      "name": "tokio_device_test_tests_io_take"
-    },
-    {
-      "name": "tokio_device_test_tests_io_write"
-    },
-    {
-      "name": "tokio_device_test_tests_io_write_all"
-    },
-    {
-      "name": "tokio_device_test_tests_io_write_buf"
-    },
-    {
-      "name": "tokio_device_test_tests_io_write_int"
-    },
-    {
-      "name": "tokio_device_test_tests_macros_join"
-    },
-    {
-      "name": "tokio_device_test_tests_macros_pin"
-    },
-    {
-      "name": "tokio_device_test_tests_macros_select"
-    },
-    {
-      "name": "tokio_device_test_tests_macros_test"
-    },
-    {
-      "name": "tokio_device_test_tests_macros_try_join"
-    },
-    {
-      "name": "tokio_device_test_tests_net_bind_resource"
-    },
-    {
-      "name": "tokio_device_test_tests_net_lookup_host"
-    },
-    {
-      "name": "tokio_device_test_tests_no_rt"
-    },
-    {
-      "name": "tokio_device_test_tests_process_kill_on_drop"
-    },
-    {
-      "name": "tokio_device_test_tests_rt_basic"
-    },
-    {
-      "name": "tokio_device_test_tests_rt_common"
-    },
-    {
-      "name": "tokio_device_test_tests_rt_threaded"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_barrier"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_broadcast"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_errors"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_mpsc"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_mutex"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_mutex_owned"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_notify"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_oneshot"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_rwlock"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_semaphore"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_semaphore_owned"
-    },
-    {
-      "name": "tokio_device_test_tests_sync_watch"
-    },
-    {
-      "name": "tokio_device_test_tests_task_abort"
-    },
-    {
-      "name": "tokio_device_test_tests_task_blocking"
-    },
-    {
-      "name": "tokio_device_test_tests_task_local"
-    },
-    {
-      "name": "tokio_device_test_tests_task_local_set"
-    },
-    {
-      "name": "tokio_device_test_tests_tcp_accept"
-    },
-    {
-      "name": "tokio_device_test_tests_tcp_connect"
-    },
-    {
-      "name": "tokio_device_test_tests_tcp_echo"
-    },
-    {
-      "name": "tokio_device_test_tests_tcp_into_split"
-    },
-    {
-      "name": "tokio_device_test_tests_tcp_into_std"
-    },
-    {
-      "name": "tokio_device_test_tests_tcp_peek"
-    },
-    {
-      "name": "tokio_device_test_tests_tcp_shutdown"
-    },
-    {
-      "name": "tokio_device_test_tests_tcp_socket"
-    },
-    {
-      "name": "tokio_device_test_tests_tcp_split"
-    },
-    {
-      "name": "tokio_device_test_tests_time_rt"
-    },
-    {
-      "name": "tokio_device_test_tests_udp"
-    },
-    {
-      "name": "tokio_device_test_tests_uds_cred"
-    },
-    {
-      "name": "tokio_device_test_tests_uds_split"
+      "path": "external/rust/crates/tokio-test"
     }
   ]
 }
diff --git a/cargo2android.json b/cargo2android.json
new file mode 100644
index 0000000..bf78496
--- /dev/null
+++ b/cargo2android.json
@@ -0,0 +1,4 @@
+{
+  "device": true,
+  "run": true
+}
\ No newline at end of file