these 2 derivations will be built:
  /nix/store/khxgrxa3i3k68575k621g02sfyl8v3hn-flake-inputs.drv
  /nix/store/9qwf276icg9ln4s7cgf3qb7vmbggg09h-check-flake-inputs.drv
building '/nix/store/khxgrxa3i3k68575k621g02sfyl8v3hn-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/khxgrxa3i3k68575k621g02sfyl8v3hn-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building khxgrxa3i3k68575k621g02sfyl8v3hn-flake-inputs.drv
building '/nix/store/9qwf276icg9ln4s7cgf3qb7vmbggg09h-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/9qwf276icg9ln4s7cgf3qb7vmbggg09h-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 9qwf276icg9ln4s7cgf3qb7vmbggg09h-check-flake-inputs.drv