diff --git b/rules.mk a/rules.mk
index 3e8e111..4e542db 100644
--- b/rules.mk
+++ a/rules.mk
@@ -14,10 +14,6 @@ MODULE_RUSTFLAGS += \
 	--cfg 'feature="std"' \
 
 MODULE_LIBRARY_DEPS := \
-	external/rust/crates/bytemuck \
-	external/rust/crates/num-traits \
 	external/rust/crates/serde \
-	external/rust/crates/zerocopy \
-	external/rust/crates/crunchy \
 
 include make/library.mk