these 2 derivations will be built:
  /nix/store/r4iiqa0y08ppx9qc7pqkj9nim9sanhl0-flake-inputs.drv
  /nix/store/b6arvcrw9slwsqjw0c6ammz3wrdyi8h8-check-flake-inputs.drv
building '/nix/store/r4iiqa0y08ppx9qc7pqkj9nim9sanhl0-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/r4iiqa0y08ppx9qc7pqkj9nim9sanhl0-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building r4iiqa0y08ppx9qc7pqkj9nim9sanhl0-flake-inputs.drv
building '/nix/store/b6arvcrw9slwsqjw0c6ammz3wrdyi8h8-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/b6arvcrw9slwsqjw0c6ammz3wrdyi8h8-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building b6arvcrw9slwsqjw0c6ammz3wrdyi8h8-check-flake-inputs.drv