these 2 derivations will be built:
  /nix/store/msy4h06g4q2z1yqjdskpwhzp6z432qld-flake-inputs.drv
  /nix/store/xcfl6a3dpqhpyw8xav1qj8s8x4w0m8jr-check-flake-inputs.drv
building '/nix/store/msy4h06g4q2z1yqjdskpwhzp6z432qld-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/msy4h06g4q2z1yqjdskpwhzp6z432qld-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building msy4h06g4q2z1yqjdskpwhzp6z432qld-flake-inputs.drv
building '/nix/store/xcfl6a3dpqhpyw8xav1qj8s8x4w0m8jr-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/xcfl6a3dpqhpyw8xav1qj8s8x4w0m8jr-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building xcfl6a3dpqhpyw8xav1qj8s8x4w0m8jr-check-flake-inputs.drv