rCore-Tutorial-v3/.vscode/settings.json

{
    // Prevent "can't find crate for `test`" error on no_std
    // Ref: https://github.com/rust-lang/vscode-rust/issues/729
    // For vscode-rust plugin users:
    "rust.target": "riscv64gc-unknown-none-elf",
    "rust.all_targets": false,
    // For Rust Analyzer plugin users:
    "rust-analyzer.cargo.target": "riscv64gc-unknown-none-elf",
    "rust-analyzer.checkOnSave.allTargets": false,
    "rust-analyzer.cargo.features": [
        "board_qemu"
    ]
}