[bug#63893] gnu: nix: Update to 2.16.1

[jgart]

> Those look good to me. I did not runtime-test it though.

Hi Sergei,

Thanks for the message.

Are you running the tests successfully for rapidcheck in your ebuild version? 

I don't know portage, unfortunately.

We'd like to get the tests running and passing for rapidcheck but they are 
currently disabled because we are not sure how to run the test suite for 
rapidcheck.

Have you had any success running the tests for rapidcheck?

all best,

jgart (Jorge)