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# Error code E0583

A file wasn’t found for an out-of-line module.

Erroneous code example:

    mod file_that_doesnt_exist; // error: file not found for module

    fn main() {}

Please be sure that a file corresponding to the module exists. If you want to use a module named `file_that_doesnt_exist`, you need to have a file named `file_that_doesnt_exist.rs` or `file_that_doesnt_exist/mod.rs` in the same directory.