these 2 derivations will be built:
  /nix/store/p7wl06y50waginxvnki3wx0cr92yk4rk-flake-inputs.drv
  /nix/store/6d9bhi39x0s7sh5k3m6rzig3d8sb5164-check-flake-inputs.drv
building '/nix/store/p7wl06y50waginxvnki3wx0cr92yk4rk-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/p7wl06y50waginxvnki3wx0cr92yk4rk-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-23d67df9: building p7wl06y50waginxvnki3wx0cr92yk4rk-flake-inputs.drv
building '/nix/store/6d9bhi39x0s7sh5k3m6rzig3d8sb5164-check-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/6d9bhi39x0s7sh5k3m6rzig3d8sb5164-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-23d67df9: building 6d9bhi39x0s7sh5k3m6rzig3d8sb5164-check-flake-inputs.drv