these 2 derivations will be built:
  /nix/store/98jjfah6yg1q7j5pjxz8d2rp6sxrxvkx-cargo-vendor-dir.drv
  /nix/store/jm0rw285qzn1ar4lr8mw5w8z0ka6abil-herdr-autoname-0.1.0.drv
error: Cannot build '/nix/store/98jjfah6yg1q7j5pjxz8d2rp6sxrxvkx-cargo-vendor-dir.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/n7c1gmrq8bki6qjac34482nhl19knd2b-cargo-vendor-dir
       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/98jjfah6yg1q7j5pjxz8d2rp6sxrxvkx-cargo-vendor-dir.drv
error: Cannot build '/nix/store/jm0rw285qzn1ar4lr8mw5w8z0ka6abil-herdr-autoname-0.1.0.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/3zjh8sf5f0df3yxyymflzbflqha92gjg-herdr-autoname-0.1.0