these 2 derivations will be built:
  /nix/store/x4l1p04p2j75x383zv74fc9mc64x9a67-flake-inputs.drv
  /nix/store/x6fwba7vn06djjbgafgnb5n73cprglc6-check-flake-inputs.drv
building '/nix/store/x4l1p04p2j75x383zv74fc9mc64x9a67-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/x4l1p04p2j75x383zv74fc9mc64x9a67-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building x4l1p04p2j75x383zv74fc9mc64x9a67-flake-inputs.drv
building '/nix/store/x6fwba7vn06djjbgafgnb5n73cprglc6-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/x6fwba7vn06djjbgafgnb5n73cprglc6-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building x6fwba7vn06djjbgafgnb5n73cprglc6-check-flake-inputs.drv