this derivation will be built:
  /nix/store/8vcfhm0h1bqq8mqp6v7wi7n56a0nqh26-check-t3code.drv
building '/nix/store/8vcfhm0h1bqq8mqp6v7wi7n56a0nqh26-check-t3code.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=22&system=aarch64-darwin'
building '/nix/store/8vcfhm0h1bqq8mqp6v7wi7n56a0nqh26-check-t3code.drv' on farm.numtide.com:50051
check-t3code> mac02: building 8vcfhm0h1bqq8mqp6v7wi7n56a0nqh26-check-t3code.drv