these 2 derivations will be built:
  /nix/store/b54jiskmrf92h3aa1x4c39w3inmjr21a-flake-inputs.drv
  /nix/store/8cmw1mfichm58n3lf4dskmxkfa0i98c3-check-flake-inputs.drv
building '/nix/store/b54jiskmrf92h3aa1x4c39w3inmjr21a-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/b54jiskmrf92h3aa1x4c39w3inmjr21a-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building b54jiskmrf92h3aa1x4c39w3inmjr21a-flake-inputs.drv
building '/nix/store/8cmw1mfichm58n3lf4dskmxkfa0i98c3-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/8cmw1mfichm58n3lf4dskmxkfa0i98c3-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 8cmw1mfichm58n3lf4dskmxkfa0i98c3-check-flake-inputs.drv