rust toolchain cleaner

About

This small program deletes all installed rust toolchains except channels:

1. beta
2. stable
3. nightly
4. unstable

Requirements

1. rustup rustup toolchain installer.

Arguments

1. -h print this help message and exit
2. -v print version number and exit
3. -l list installed rust toolchains
4. -n do not delete any installed rust toolchains

License

This is free and unencumbered software released into the public domain.

This code can be used under terms of CC0 or the Unlicense.