message: rustup-toolchain: also prepare toolchain for vscode
diff: @@ -44,3 +44,7 @@ rustup override set miri
  # Cleanup.
  cargo clean
  +
  +# Call 'cargo metadata' on the sources in case that changes the lockfile
  +# (which fails under soem setups when it is done from inside vscode).
  +cargo metadata --format-version 1 --manifest-path "$(rustc --print sysroot)/lib/rustlib/rustc-src/rust/compiler/rustc/Cargo.toml" >/dev/null
  