* Allow different names for ...rest
* Resolves#3945
* This change requires an explicit name for the rest argument in `WholeStreamCommand`,
which is why there are so many changed files.
* Remove redundant clone
* Add tests
* Possible implementation of globbing for start command
* Whoops forgot to remove Error used for debugging
* Use string lossy
* Run clippy
* Pin glob
* Better error messages
* Remove unneeded comment
* mvp for start command
* modified the signature of the start command
* parse filenames
* working model for macos is done
* refactored to read from pipes
* start command works well on macos; manual testing reveals need of --args flag support
* implemented start error; color printing of warning and errors
* ran clippy and fixed warnings
* fix a clippy lint that was caught in pipeline
* fix dead code clippy lint for windows
* add cfg annotation to import
