these 2 derivations will be built:
  /nix/store/21dgrm64ff1g772myhbpvsgp8x8nhz3f-flake-inputs.drv
  /nix/store/ci8bzy8l1ld0sbkgi7r7mrar3m4rk0bh-check-flake-inputs.drv
building '/nix/store/21dgrm64ff1g772myhbpvsgp8x8nhz3f-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/21dgrm64ff1g772myhbpvsgp8x8nhz3f-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 21dgrm64ff1g772myhbpvsgp8x8nhz3f-flake-inputs.drv
building '/nix/store/ci8bzy8l1ld0sbkgi7r7mrar3m4rk0bh-check-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/ci8bzy8l1ld0sbkgi7r7mrar3m4rk0bh-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building ci8bzy8l1ld0sbkgi7r7mrar3m4rk0bh-check-flake-inputs.drv