cu29-derive 0.15.0

This is the copper project runtime generator. It cannot be used independently from the copper project.
Documentation 
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error: The configuration file `invalid/path/to/config.ron` does not exist. Please provide a valid path.
 --> tests/compile_fail/cu_msg/invalid_file_path.rs:3:1
  |
3 | gen_cumsgs!("invalid/path/to/config.ron");
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: this error originates in the macro `gen_cumsgs` (in Nightly builds, run with -Z macro-backtrace for more info)