these 2 derivations will be built:
  /nix/store/ypc3k09dfp6h038yy2ys46vshq7d9nxj-flake-inputs.drv
  /nix/store/ys0w3is26131r79z92r9qny3pd8lg8ww-check-flake-inputs.drv
building '/nix/store/ypc3k09dfp6h038yy2ys46vshq7d9nxj-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/ypc3k09dfp6h038yy2ys46vshq7d9nxj-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building ypc3k09dfp6h038yy2ys46vshq7d9nxj-flake-inputs.drv
building '/nix/store/ys0w3is26131r79z92r9qny3pd8lg8ww-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/ys0w3is26131r79z92r9qny3pd8lg8ww-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building ys0w3is26131r79z92r9qny3pd8lg8ww-check-flake-inputs.drv