these 2 derivations will be built:
  /nix/store/ipzz3r0brs4psa0wa4g9x9jws9632jlc-flake-inputs.drv
  /nix/store/iww2brdw0r68s3ih7viy6c62rva0lrrl-check-flake-inputs.drv
building '/nix/store/ipzz3r0brs4psa0wa4g9x9jws9632jlc-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/ipzz3r0brs4psa0wa4g9x9jws9632jlc-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building ipzz3r0brs4psa0wa4g9x9jws9632jlc-flake-inputs.drv
building '/nix/store/iww2brdw0r68s3ih7viy6c62rva0lrrl-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/iww2brdw0r68s3ih7viy6c62rva0lrrl-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building iww2brdw0r68s3ih7viy6c62rva0lrrl-check-flake-inputs.drv