these 2 derivations will be built:
  /nix/store/pizp57sc6xf42q312ny7rp9pwjg17l9n-flake-inputs.drv
  /nix/store/khmb8d0yj85kqid1ycsfixqn2g1kcfqc-check-flake-inputs.drv
building '/nix/store/pizp57sc6xf42q312ny7rp9pwjg17l9n-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/pizp57sc6xf42q312ny7rp9pwjg17l9n-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-2bfcc0ae: building pizp57sc6xf42q312ny7rp9pwjg17l9n-flake-inputs.drv
building '/nix/store/khmb8d0yj85kqid1ycsfixqn2g1kcfqc-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/khmb8d0yj85kqid1ycsfixqn2g1kcfqc-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-2bfcc0ae: building khmb8d0yj85kqid1ycsfixqn2g1kcfqc-check-flake-inputs.drv