these 2 derivations will be built:
  /nix/store/9znz3ka7di8l3kd2lrkv5yasy8hwsxbs-flake-inputs.drv
  /nix/store/ld4bbfdni5iyxnvi4fmrm6ixrc67hyb3-check-flake-inputs.drv
building '/nix/store/9znz3ka7di8l3kd2lrkv5yasy8hwsxbs-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=20&system=aarch64-linux'
building '/nix/store/9znz3ka7di8l3kd2lrkv5yasy8hwsxbs-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-52ccf228: building 9znz3ka7di8l3kd2lrkv5yasy8hwsxbs-flake-inputs.drv
building '/nix/store/ld4bbfdni5iyxnvi4fmrm6ixrc67hyb3-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=20&system=aarch64-linux'
building '/nix/store/ld4bbfdni5iyxnvi4fmrm6ixrc67hyb3-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-52ccf228: building ld4bbfdni5iyxnvi4fmrm6ixrc67hyb3-check-flake-inputs.drv