``` > rustup component add clippy error: component 'clippy' for target 'x86_64-pc-windows-msvc' is unavailable for download > rustup show Default host: x86_64-pc-windows-msvc installed toolchains -------------------- stable-x86_64-pc-windows-msvc nightly-x86_64-pc-windows-msvc active toolchain ---------------- nightly-x86_64-pc-windows-msvc (default) rustc 1.34.0-nightly (c1d2d83ca 2019-03-01) > rustup --version rustup 1.16.0 (beab5ac2b 2018-12-06) ``` One of the workarounds that was suggested was to uninstall the entire toolchain (rustup and all), and reinstall it, but alas, that didn't work.