this derivation will be built:
  /nix/store/y05wkn3xy52bmawrmg2jmgiqw7gcxkmg-nix-eval-warnings-0.1.0.drv
error: Cannot build '/nix/store/y05wkn3xy52bmawrmg2jmgiqw7gcxkmg-nix-eval-warnings-0.1.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/3kgw74f607vypbpbpbgfzgbwyws9m3dn-nix-eval-warnings-0.1.0-dist
         /nix/store/vi3mx70ddpsjxf08z5klcqlpipafwp2j-nix-eval-warnings-0.1.0
       Last 2 log lines:
       > tribuchet: building on mac02
       > tribuchet worker error: connecting to the local nix-daemon: serverMagic: io error unexpected end-of-file: unexpected end-of-file
       For full logs, run:
         nix log /nix/store/y05wkn3xy52bmawrmg2jmgiqw7gcxkmg-nix-eval-warnings-0.1.0.drv