Simplify onto Microsoft Rust image

Author: sourcefrog

.devcontainer/devcontainer.json

@@ -1,14 +1,17 @@
 // For format details, see https://aka.ms/devcontainer.json.
 {
   "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": "bullseye"
-    }
-  },
+  "image": "mcr.microsoft.com/devcontainers/rust",
+  // "image": "rust:1-trixie",
+  // "image": "mcr.microsoft.com/devcontainers/base:debian-bullseye",
+  // "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": "trixie"
+  //   }
+  // },
   "runArgs": ["--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined"],
 
   // Configure tool-specific properties.
@@ -21,8 +24,7 @@
         // 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.
@@ -42,11 +44,12 @@
   // "postCreateCommand": "rustc --version",
 
   // Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
-  "remoteUser": "vscode",
+  // "remoteUser": "vscode",
   "features": {
     "git": "os-provided",
     "github-cli": "latest",
-    "ghcr.io/meaningful-ooo/devcontainer-features/fish:1": {},
+    "rust": "latest",
+    // "ghcr.io/meaningful-ooo/devcontainer-features/fish:1": {},
     "ghcr.io/devcontainers/features/sshd:1": {
         "version": "latest"
     }