The pretty printers can be made to work in Windows, as described here: http://stackoverflow.com/questions/33570021/how-to-set-up-gdb-for-debugging-rust-programs-in-windows/33570022#33570022

At a minimum the GDB pretty-printers should be added to the Windows GNU ABI Rust installation, so that they don't have to downloaded separately.

At best, the pretty-printers GDB auto-loading should work as well. I think for that the GDB auto-load info should be added to the debug information of the generated code in Windows.

@michaelwoerister Regarding this comment: #16365 (comment) , what issues did you have trying this out in Windows?