Add wasm-opt-for-rust-maintenance-6

maintenance_deliveries/wasm-opt-for-rust-maintenance-6.md

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+# Maintenance Delivery :mailbox:
+
+**The [invoice form :pencil:](https://docs.google.com/forms/d/e/1FAIpQLSfmNYaoCgrxyhzgoKQ0ynQvnNRoTmgApz9NrMp-hd8mhIiO0A/viewform) has been filled out correctly for this delivery**  
+
+* **Application Document:** https://github.com/w3f/Grants-Program/blob/master/applications/maintenance/wasm-opt-for-rust.md
+* **Delivery Number:** 6
+* **Delivery Date:** 2023/06/01
+
+
+**Context**
+
+We began work on the binaryen 113 upgrade,
+investigated a report of build errors with GCC 13,
+and discussed adding in-memory APIs with the binaryen authors.
+
+**Deliverables**
+
+Note: a full hourly accounting of work performed is included with the invoice.
+
+| Number | Deliverable | Link | Notes |
+| ------------- | ------------- | ------------- |------------- |
+| 1. | GCC 13 bug report | https://github.com/brson/wasm-opt-rs/issues/143#issuecomment-1535377565 | |
+| 2. | Discussion about in-memory module read/write in binaryen | https://github.com/WebAssembly/binaryen/issues/5736 | |
+
+**Additional Information**
+
+N/A