fix for rust-analyzer warning

.vscode/settings.json

@@ -7,7 +7,7 @@
     // For Rust Analyzer plugin users:
     "rust-analyzer.cargo.target": "riscv64gc-unknown-none-elf",
     "rust-analyzer.checkOnSave.allTargets": false,
-    "rust-analyzer.cargo.features": [
-        "board_qemu"
-    ]
+    // "rust-analyzer.cargo.features": [
+    //     "board_qemu"
+    // ]
 }
\ No newline at end of file

user/Cargo.toml

@@ -11,6 +11,6 @@ edition = "2018"
 [profile.release]
 debug = true
 
-[features]
-board_qemu = []
-board_k210 = []
\ No newline at end of file
+# [features]
+# board_qemu = []
+# board_k210 = []
\ No newline at end of file