[anneal][v2] Add and integrate nix-built exocrate#3383

mdittmer wants to merge 2 commits into

maingoogle/zerocopy:mainfrom

Gwhroikc5idscowxamayknlke2uiddzv3google/zerocopy:Gwhroikc5idscowxamayknlke2uiddzv3Copy head branch name to clipboard