this derivation will be built:
  /nix/store/qc7rik07laipg0mg7awzsqmx0awa8aqg-fast-18046.drv
building '/nix/store/qc7rik07laipg0mg7awzsqmx0awa8aqg-fast-18046.drv'
fast-18046> tribuchet: building on jamie
fast-18046> Error: remote build failed: no connected worker builds for system x86_64-linux
error: Cannot build '/nix/store/qc7rik07laipg0mg7awzsqmx0awa8aqg-fast-18046.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/mmsrvpwhsalflcgpk9zrwv7zmg9w6s4x-fast-18046
       Last 2 log lines:
       > tribuchet: building on jamie
       > Error: remote build failed: no connected worker builds for system x86_64-linux
       For full logs, run:
         nix log /nix/store/qc7rik07laipg0mg7awzsqmx0awa8aqg-fast-18046.drv