86e5cce6

Re-enable Nix CI

The upstream issue has been fixed, so this repo can have at it again.
Time to Start Worker time Duration Time to finish
Config 0s 1s 1s 1s
Eval 1s 2m13s 2m13s 2m15s
Build 2m15s 1h11m56s 1h17m59s 1h20m14s
Suite 0s 1h14m11s 1h20m14s 1h20m14s