Bump Rust version to 1.69

.devcontainer/Dockerfile

@@ -5,7 +5,7 @@ ARG VARIANT="ubuntu-22.04"
 FROM mcr.microsoft.com/vscode/devcontainers/base:0-${VARIANT}
 
 # note: keep this in sync with .github/workflows/ci.yml
-ARG RUSTVERSION="1.68"
+ARG RUSTVERSION="1.69"
 
 # Needed for dotnet7; remove when available in Ubuntu
 RUN wget https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \

.github/workflows/ci.yml

@@ -46,9 +46,8 @@ jobs:
       - uses: actions/checkout@v3
       - name: Install specific Rust version
         uses: dtolnay/rust-toolchain@55c7845fad90d0ae8b2e83715cb900e5e861e8cb # pinned latest master as of 2022-10-08
-        # note: keep this in sync with .devcontainer/Dockerfile
         with:
-          toolchain: 1.68
+          toolchain: 1.69 # note: keep this in sync with .devcontainer/Dockerfile
           components: clippy, rustfmt, llvm-tools-preview
       - name: Setup Rust problem-matchers
         uses: r7kamura/rust-problem-matchers@d58b70c4a13c4866d96436315da451d8106f8f08 # pinned to 1.3.0