Address clanker review

Signed-off-by: Ludvig Liljenberg <4257730+ludfjig@users.noreply.github.com>

Author: ludfjig

.devcontainer/Dockerfile

@@ -57,6 +57,6 @@ RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y \
     && rustup target add x86_64-unknown-linux-gnu \
     && rustup target add x86_64-unknown-linux-musl \
     && rustup target add x86_64-unknown-none      \
-    && rustup toolchain add nightly-x86_64-unknown-linux-gnu \
+    && rustup toolchain add nightly-2026-09-22-x86_64-unknown-linux-gnu \
     && cargo install just \
     && cargo install cross --locked --version 0.2.5

flake.nix

@@ -96,9 +96,9 @@
               sha256 = "sha256-qqF33vNuAdU5vua96VKVIwuc43j4EFeEXbjQ6+l4mO4=";
             };
             nightly = {
-              date = "2026-02-27";
+              date = "2026-09-22";
               channel = "nightly";
-              sha256 = "sha256-5twI9QsrPl0ryOZ4POGYAivSeI08jgmWnv0wVvzbjcE=";
+              sha256 = "sha256-7qsyGDZErke6MdrngELbKaqs1Xgx8ols/e/HIygUIXg=";
             };
             "1.89" = {
               date = "2025-08-07";