| diff --git b/rules.mk a/rules.mk | |
| index 078c0bb..3ccd69f 100644 | |
| --- b/rules.mk | |
| +++ a/rules.mk | |
| @@ -14,6 +14,7 @@ MODULE_RUSTFLAGS += \ | |
| --cfg 'feature="alloc"' | |
| MODULE_LIBRARY_DEPS := \ | |
| + trusty/user/base/lib/liballoc-rust \ | |
| $(call FIND_CRATE,bitflags) \ | |
| $(call FIND_CRATE,log) \ | |
| $(call FIND_CRATE,zerocopy) \ |