these 2 derivations will be built:
  /nix/store/x1ibcicis4jmbh16236g4a7q6rg8lpz0-flake-inputs.drv
  /nix/store/wqf1akwxfz141rxcl4agsllhl2gjnns8-check-flake-inputs.drv
building '/nix/store/x1ibcicis4jmbh16236g4a7q6rg8lpz0-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/x1ibcicis4jmbh16236g4a7q6rg8lpz0-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-23d67df9: building x1ibcicis4jmbh16236g4a7q6rg8lpz0-flake-inputs.drv
building '/nix/store/wqf1akwxfz141rxcl4agsllhl2gjnns8-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/wqf1akwxfz141rxcl4agsllhl2gjnns8-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-23d67df9: building wqf1akwxfz141rxcl4agsllhl2gjnns8-check-flake-inputs.drv