# Settings Example | |
Add the following to settings.json to mark Rust library sources as read-only: | |
```json | |
"files.readonlyInclude": { | |
"**/.cargo/registry/src/**/*.rs": true, | |
"**/.cargo/git/checkouts/**/*.rs": true, | |
"**/lib/rustlib/src/rust/library/**/*.rs": true, | |
}, | |
``` |