these 2 derivations will be built:
  /nix/store/m4z75klyhs2yw455gi5n1m40rfk9zapz-flake-inputs.drv
  /nix/store/921va3hsd2w8fc14kwcdz2f4nhlg4z23-check-flake-inputs.drv
building '/nix/store/m4z75klyhs2yw455gi5n1m40rfk9zapz-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/m4z75klyhs2yw455gi5n1m40rfk9zapz-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building m4z75klyhs2yw455gi5n1m40rfk9zapz-flake-inputs.drv
building '/nix/store/921va3hsd2w8fc14kwcdz2f4nhlg4z23-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/921va3hsd2w8fc14kwcdz2f4nhlg4z23-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 921va3hsd2w8fc14kwcdz2f4nhlg4z23-check-flake-inputs.drv