this derivation will be built:
  /nix/store/vc8bfs6wxma56ls0bw9rx3p6l0hci3zr-fast-18039.drv
building '/nix/store/vc8bfs6wxma56ls0bw9rx3p6l0hci3zr-fast-18039.drv'
fast-18039> tribuchet: building on jamie
fast-18039> Error: remote build failed: no connected worker builds for system x86_64-linux
error: Cannot build '/nix/store/vc8bfs6wxma56ls0bw9rx3p6l0hci3zr-fast-18039.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/w4w0gqhybbb6piwz4qyyc74saa5gls3z-fast-18039
       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/vc8bfs6wxma56ls0bw9rx3p6l0hci3zr-fast-18039.drv