these 2 derivations will be built:
  /nix/store/a7yxqsi928xrczc773zb7bi1b1r39wbh-flake-inputs.drv
  /nix/store/m2j5ih0r9jsyg4yvllq11yf8ns8p839g-check-flake-inputs.drv
building '/nix/store/a7yxqsi928xrczc773zb7bi1b1r39wbh-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/a7yxqsi928xrczc773zb7bi1b1r39wbh-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building a7yxqsi928xrczc773zb7bi1b1r39wbh-flake-inputs.drv
building '/nix/store/m2j5ih0r9jsyg4yvllq11yf8ns8p839g-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/m2j5ih0r9jsyg4yvllq11yf8ns8p839g-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building m2j5ih0r9jsyg4yvllq11yf8ns8p839g-check-flake-inputs.drv