[deps]: Update Rust to v2025-09-18

renovate[bot] · web-flow · commit 4e56e0457ea2 · 2025-09-18T03:15:41.000Z
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
@@ -5,4 +5,4 @@ profile = "minimal"
 
 # The following is not part of the rust-toolchain.toml format,
 # but is used by our Renovate config to manage nightly versions.
-nightly-channel = "nightly-2025-08-18"
+nightly-channel = "nightly-2025-09-18"
