these 2 derivations will be built:
  /nix/store/vz850nwkdfplm5vg2sxgh4a1ry6ga691-flake-inputs.drv
  /nix/store/mky6bxvd8vkzaq1r9w0h70hfpzcw4rmi-check-flake-inputs.drv
building '/nix/store/vz850nwkdfplm5vg2sxgh4a1ry6ga691-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/vz850nwkdfplm5vg2sxgh4a1ry6ga691-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building vz850nwkdfplm5vg2sxgh4a1ry6ga691-flake-inputs.drv
building '/nix/store/mky6bxvd8vkzaq1r9w0h70hfpzcw4rmi-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/mky6bxvd8vkzaq1r9w0h70hfpzcw4rmi-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building mky6bxvd8vkzaq1r9w0h70hfpzcw4rmi-check-flake-inputs.drv