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`rustdoc --test`: Prevent reaching the maximum size of command-line by using files for arguments if there are too many Fixes #122722. Thanks to this I discovered that rust was using ``@`` to add arguments from a file, quite convenient. If there are too many `cfg` arguments given to `rustdoc --test`, it'll now put them into a temporary file and passing it as argument to the rustc command. I added a test with 100_000 `cfg` arguments to ensure it'll not break again. r? `@notrid`
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.