these 2 derivations will be built:
  /nix/store/sfbcr4kq84nlv7pp637ysibcmxm4hj23-flake-inputs.drv
  /nix/store/hdr3ljqgp20ai7c4lvslb3saikb7ylpf-check-flake-inputs.drv
building '/nix/store/sfbcr4kq84nlv7pp637ysibcmxm4hj23-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/sfbcr4kq84nlv7pp637ysibcmxm4hj23-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building sfbcr4kq84nlv7pp637ysibcmxm4hj23-flake-inputs.drv
building '/nix/store/hdr3ljqgp20ai7c4lvslb3saikb7ylpf-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/hdr3ljqgp20ai7c4lvslb3saikb7ylpf-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building hdr3ljqgp20ai7c4lvslb3saikb7ylpf-check-flake-inputs.drv