From 343038c3c3260e484cd1c7b73aa4b217ce3edac4 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Mon, 3 Oct 2022 11:20:18 +0100
Subject: [PATCH] Always build Rust extension in release mode (#14009)

Fixes #13990
---
 build_rust.py            | 3 +++
 changelog.d/14009.bugfix | 1 +
 2 files changed, 4 insertions(+)
 create mode 100644 changelog.d/14009.bugfix

diff --git a/build_rust.py b/build_rust.py
index 5c5e557ee8..662474dcb4 100644
--- a/build_rust.py
+++ b/build_rust.py
@@ -15,6 +15,9 @@ def build(setup_kwargs: Dict[str, Any]) -> None:
         path=cargo_toml_path,
         binding=Binding.PyO3,
         py_limited_api=True,
+        # We force always building in release mode, as we can't tell the
+        # difference between using `poetry` in development vs production.
+        debug=False,
     )
     setup_kwargs.setdefault("rust_extensions", []).append(extension)
     setup_kwargs["zip_safe"] = False
diff --git a/changelog.d/14009.bugfix b/changelog.d/14009.bugfix
new file mode 100644
index 0000000000..5f85fee967
--- /dev/null
+++ b/changelog.d/14009.bugfix
@@ -0,0 +1 @@
+Fix bug where Rust extension wasn't built in `release` mode when using `poetry install`.