these 2 derivations will be built:
  /nix/store/xympwci1kaggwlikw5v0c4hidy9nlz54-flake-inputs.drv
  /nix/store/q1ii2jbc69cfl2g5m3pxickrbbxsp7wk-check-flake-inputs.drv
building '/nix/store/xympwci1kaggwlikw5v0c4hidy9nlz54-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/xympwci1kaggwlikw5v0c4hidy9nlz54-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building xympwci1kaggwlikw5v0c4hidy9nlz54-flake-inputs.drv
building '/nix/store/q1ii2jbc69cfl2g5m3pxickrbbxsp7wk-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/q1ii2jbc69cfl2g5m3pxickrbbxsp7wk-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building q1ii2jbc69cfl2g5m3pxickrbbxsp7wk-check-flake-inputs.drv