Add proper cargo/rust-analyzer scan settings for vscode, solves rust-lang/rust-analyzer#3801 (comment) for me

brainstorm · brainstorm · commit 0ade6c620ae0 · 2020-08-27T22:44:27.000+10:00
diff --git a/.vscode/settings.json b/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+    "rust-analyzer.checkOnSave.allTargets": false,
+    "rust-analyzer.checkOnSave.extraArgs": [
+        "--target",
+        "thumbv6m-none-eabi"
+    ]
+}
