Add Trusty rules.mk file am: 7513c72639 am: c46bcebcdf am: a598322ad1

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/async-trait/+/2770391

Change-Id: I3c2ed143fe107a786fae1bb8f60826e3df086d31
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/rules.mk b/rules.mk
new file mode 100644
index 0000000..c82a8de
--- /dev/null
+++ b/rules.mk
@@ -0,0 +1,17 @@
+# This file is generated by cargo2rulesmk.py --run.
+# Do not modify this file as changes will be overridden on upgrade.
+
+LOCAL_DIR := $(GET_LOCAL_DIR)
+MODULE := $(LOCAL_DIR)
+MODULE_CRATE_NAME := async_trait
+MODULE_RUST_CRATE_TYPES := proc-macro
+MODULE_SRCS := \
+	$(LOCAL_DIR)/src/lib.rs \
+
+MODULE_RUST_EDITION := 2021
+MODULE_LIBRARY_DEPS := \
+	external/rust/crates/proc-macro2 \
+	external/rust/crates/quote \
+	external/rust/crates/syn \
+
+include make/library.mk