this derivation will be built:
  /nix/store/kn5523h7hm8mlg8vhi7mqci21lzk3v1s-iets-classic-2.34.8.drv
building '/nix/store/kn5523h7hm8mlg8vhi7mqci21lzk3v1s-iets-classic-2.34.8.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/kn5523h7hm8mlg8vhi7mqci21lzk3v1s-iets-classic-2.34.8.drv' on farm.numtide.com:50051
iets-classic-2.34.8> elastic-arm-33ab032c: building kn5523h7hm8mlg8vhi7mqci21lzk3v1s-iets-classic-2.34.8.drv