Updated dependencies, added CI caching, fixed devcontainer

Author: Xithrius

.devcontainer/Dockerfile

@@ -1,8 +1,7 @@
 # See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.238.1/containers/rust/.devcontainer/base.Dockerfile
 
 # [Choice] Debian OS version (use bullseye on local arm64/Apple Silicon): buster, bullseye
-ARG VARIANT="buster"
-FROM mcr.microsoft.com/vscode/devcontainers/rust:0-${VARIANT}
+FROM mcr.microsoft.com/devcontainers/rust:latest
 
 # [Optional] Uncomment this section to install additional packages.
 # RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \

.devcontainer/devcontainer.json

@@ -1,50 +1,46 @@
 // For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
 // https://github.com/microsoft/vscode-dev-containers/tree/v0.238.1/containers/rust
 {
-    "name": "Rust",
-    "build": {
-        "dockerfile": "Dockerfile",
-        "args": {
-            // Use the VARIANT arg to pick a Debian OS version: buster, bullseye
-            // Use bullseye when on local on arm64/Apple Silicon.
-            "VARIANT": "buster"
-        }
-    },
-    "runArgs": [
-        "--cap-add=SYS_PTRACE",
-        "--security-opt",
-        "seccomp=unconfined"
-    ],
-    // Configure tool-specific properties.
-    "customizations": {
-        // Configure properties specific to VS Code.
-        "vscode": {
-            // Set *default* container specific settings.json values on container create.
-            "settings": {
-                "lldb.executable": "/usr/bin/lldb",
-                // VS Code don't watch files under ./target
-                "files.watcherExclude": {
-                    "**/target/**": true
-                },
-                "rust-analyzer.checkOnSave.command": "clippy"
-            },
-            // Add the IDs of extensions you want installed when the container is created.
-            "extensions": [
-                "vadimcn.vscode-lldb",
-                "mutantdino.resourcemonitor",
-                "rust-lang.rust-analyzer",
-                "bungcip.better-toml",
-                "serayuzgur.crates"
-            ]
-        }
-    },
-    // Use 'forwardPorts' to make a list of ports inside the container available locally.
-    // "forwardPorts": [],
-    // Use 'postCreateCommand' to run commands after the container is created.
-    // "postCreateCommand": "rustc --version",
-    // Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
-    "remoteUser": "vscode",
-    "features": {
-        "github-cli": "latest"
+  "name": "Rust",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "args": {
+      // Use the VARIANT arg to pick a Debian OS version: buster, bullseye
+      // Use bullseye when on local on arm64/Apple Silicon.
+      "VARIANT": "buster"
     }
+  },
+  "runArgs": ["--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined"],
+  // Configure tool-specific properties.
+  "customizations": {
+    // Configure properties specific to VS Code.
+    "vscode": {
+      // Set *default* container specific settings.json values on container create.
+      "settings": {
+        "lldb.executable": "/usr/bin/lldb",
+        // VS Code don't watch files under ./target
+        "files.watcherExclude": {
+          "**/target/**": true
+        },
+        "rust-analyzer.checkOnSave.command": "clippy"
+      },
+      // Add the IDs of extensions you want installed when the container is created.
+      "extensions": [
+        "vadimcn.vscode-lldb",
+        "mutantdino.resourcemonitor",
+        "rust-lang.rust-analyzer",
+        "bungcip.better-toml",
+        "serayuzgur.crates"
+      ]
+    }
+  },
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // "forwardPorts": [],
+  // Use 'postCreateCommand' to run commands after the container is created.
+  // "postCreateCommand": "rustc --version",
+  // Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+  "remoteUser": "vscode",
+  "features": {
+    "github-cli": "latest"
+  }
 }

.github/workflows/ci.yml

@@ -45,6 +45,34 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Cache Cargo registry
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-registry-
+
+      - name: Cache Cargo build artifacts
+        uses: actions/cache@v4
+        with:
+          path: target
+          key: ${{ runner.os }}-target-${{ matrix.toolchain }}-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-target-${{ matrix.toolchain }}-${{ matrix.target }}-
+
+      - name: Cache Rustup toolchain
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.rustup
+            ~/.cargo/bin
+          key: ${{ runner.os }}-rustup-${{ matrix.toolchain }}
+          restore-keys: |
+            ${{ runner.os }}-rustup-
+
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@v1
         with:
@@ -80,6 +108,16 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Cache Rustup toolchain
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.rustup
+            ~/.cargo/bin
+          key: ubuntu-latest-rustup-stable
+          restore-keys: |
+            ubuntu-latest-rustup-
+
       - name: Install Rust
         run: |
           rustup update stable