unused import: `process::Stdio`

unused import: `process::Stdio`

Process completed with exit code 101.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Unexpected input(s) 'rust-version', valid inputs are ['toolchain', 'target', 'components', 'cache', 'cache-workspaces', 'matcher', 'rustflags']