these 2 derivations will be built:
  /nix/store/i77s7sqsxyaz52953i9zpmk2y5iy8d95-flake-inputs.drv
  /nix/store/76vp5dji1g0qy2g5fjsnwncl8abj3hlk-check-flake-inputs.drv
building '/nix/store/i77s7sqsxyaz52953i9zpmk2y5iy8d95-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/i77s7sqsxyaz52953i9zpmk2y5iy8d95-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building i77s7sqsxyaz52953i9zpmk2y5iy8d95-flake-inputs.drv
building '/nix/store/76vp5dji1g0qy2g5fjsnwncl8abj3hlk-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/76vp5dji1g0qy2g5fjsnwncl8abj3hlk-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 76vp5dji1g0qy2g5fjsnwncl8abj3hlk-check-flake-inputs.drv