these 2 derivations will be built:
  /nix/store/l882f5knwwak38kgr743kqvpg18ra9mk-flake-inputs.drv
  /nix/store/na2r5m9dr21mz28w7i7z9pcgrakpkfk3-check-flake-inputs.drv
building '/nix/store/l882f5knwwak38kgr743kqvpg18ra9mk-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/l882f5knwwak38kgr743kqvpg18ra9mk-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-2c14001d: building l882f5knwwak38kgr743kqvpg18ra9mk-flake-inputs.drv
building '/nix/store/na2r5m9dr21mz28w7i7z9pcgrakpkfk3-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/na2r5m9dr21mz28w7i7z9pcgrakpkfk3-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-2c14001d: building na2r5m9dr21mz28w7i7z9pcgrakpkfk3-check-flake-inputs.drv