this derivation will be built:
  /nix/store/r5g5gy6bpk2hlg32jh7yfkp9fcia1crq-check-go-bin.drv
building '/nix/store/r5g5gy6bpk2hlg32jh7yfkp9fcia1crq-check-go-bin.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/r5g5gy6bpk2hlg32jh7yfkp9fcia1crq-check-go-bin.drv' on farm.numtide.com:50051
check-go-bin> mac02: building r5g5gy6bpk2hlg32jh7yfkp9fcia1crq-check-go-bin.drv

upload niks3: ok