these 2 derivations will be built:
  /nix/store/f543jchml5srmjv9j0x2jz91pf2dw88y-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/xxc3sr4a76gr15qllp2smdfkjv5z4n4x-vm-test-run-nix-grpc-farm.drv
building '/nix/store/f543jchml5srmjv9j0x2jz91pf2dw88y-nixos-test-driver-nix-grpc-farm.drv'
nixos-test-driver-nix-grpc-farm> tribuchet: building on eliza
nixos-test-driver-nix-grpc-farm> Running type check (enable/disable: config.skipTypeCheck)
nixos-test-driver-nix-grpc-farm> See https://nixos.org/manual/nixos/stable/#test-opt-skipTypeCheck
nixos-test-driver-nix-grpc-farm> error[unresolved-reference]: Name `leader` used when not defined
nixos-test-driver-nix-grpc-farm>    --> testScriptWithTypes:240:25
nixos-test-driver-nix-grpc-farm>     |
nixos-test-driver-nix-grpc-farm> 240 |     wants = lambda: int(leader().succeed("journalctl -u nix-grpc-daemon -o cat | grep -c 'event=want ' || true"))
nixos-test-driver-nix-grpc-farm>     |                         ^^^^^^
nixos-test-driver-nix-grpc-farm> 
nixos-test-driver-nix-grpc-farm> Found 1 diagnostic
error: Cannot build '/nix/store/f543jchml5srmjv9j0x2jz91pf2dw88y-nixos-test-driver-nix-grpc-farm.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/xdwjx7h6b9smnjqsn2chn1aay89ah59m-nixos-test-driver-nix-grpc-farm
       Last 10 log lines:
       > tribuchet: building on eliza
       > Running type check (enable/disable: config.skipTypeCheck)
       > See https://nixos.org/manual/nixos/stable/#test-opt-skipTypeCheck
       > error[unresolved-reference]: Name `leader` used when not defined
       >    --> testScriptWithTypes:240:25
       >     |
       > 240 |     wants = lambda: int(leader().succeed("journalctl -u nix-grpc-daemon -o cat | grep -c 'event=want ' || true"))
       >     |                         ^^^^^^
       >
       > Found 1 diagnostic
       For full logs, run:
         nix log /nix/store/f543jchml5srmjv9j0x2jz91pf2dw88y-nixos-test-driver-nix-grpc-farm.drv
error: Cannot build '/nix/store/xxc3sr4a76gr15qllp2smdfkjv5z4n4x-vm-test-run-nix-grpc-farm.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/wlxl23ywn6p0y38a2x2xma6ygldmxn11-vm-test-run-nix-grpc-farm