these 2 derivations will be built:
  /nix/store/3a4ba636gakzh4zxkyjlkmizf3p91mc0-flake-inputs.drv
  /nix/store/4pn9gcx9sjfdv53ppw2h4lqi4anz7pwk-check-flake-inputs.drv
building '/nix/store/3a4ba636gakzh4zxkyjlkmizf3p91mc0-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/3a4ba636gakzh4zxkyjlkmizf3p91mc0-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-bdb1245a: building 3a4ba636gakzh4zxkyjlkmizf3p91mc0-flake-inputs.drv
building '/nix/store/4pn9gcx9sjfdv53ppw2h4lqi4anz7pwk-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/4pn9gcx9sjfdv53ppw2h4lqi4anz7pwk-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-bdb1245a: building 4pn9gcx9sjfdv53ppw2h4lqi4anz7pwk-check-flake-inputs.drv