this derivation will be built:
  /nix/store/yhfd5ladyicr5mmfs059p52np2pijq0w-fast-18038.drv
building '/nix/store/yhfd5ladyicr5mmfs059p52np2pijq0w-fast-18038.drv'
fast-18038> tribuchet: building on jamie
fast-18038> Error: remote build failed: no connected worker builds for system x86_64-linux
error: Cannot build '/nix/store/yhfd5ladyicr5mmfs059p52np2pijq0w-fast-18038.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/z94lgy6l4kzcqfnh1zp5w1yxx3gqf6gm-fast-18038
       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/yhfd5ladyicr5mmfs059p52np2pijq0w-fast-18038.drv