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09131a2e31
improve container runner script First commit fixes #118930 Second commit is mostly for development purposes. In read-only mode submodules cannot be initialized due to access limitations (see the log below), which means that tools cannot be built. ```sh Updating submodule src/tools/cargo error: could not lock config file .git/config: Read-only file system error: could not lock config file .git/config: Read-only file system fatal: Failed to register url for submodule path 'src/tools/cargo' error: could not lock config file .git/config: Read-only file system error: could not lock config file .git/config: Read-only file system fatal: Failed to register url for submodule path 'src/tools/cargo' Build completed unsuccessfully in 0:00:00 ```
This directory contains some source code for the Rust project, including:
- The bootstrapping build system
- Various submodules for tools, like cargo, tidy, etc.
For more information on how various parts of the compiler work, see the rustc dev guide.