On 27-08-2022 21:54, Liliana Marie Prikler wrote:

>>   * Due to how regularised the Rust build system is, it's feasible to
>> compile tests even when cross-compiling (*), so cross-compiled could
>> run the cross-compiled tests on the system they are cross-compiling
>> for after the cross-compilation to verify their cross-compiled
>> software.
> How exactly does this work without emulating the system in question?

It works by not performing any work except compilation -- Guix' 
responsibility would only be to cross-compile and install the tests 
(_not_ running them), you are supposed to install the cross-compiled 
thing (including tests) on the target system and run the tests on the 
target system.

Greetings,
Maxime