this derivation will be built:
  /nix/store/9zq1flz37q1w2w8rzd5c4m08f4b6nsbr-check-dolt.drv
building '/nix/store/9zq1flz37q1w2w8rzd5c4m08f4b6nsbr-check-dolt.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-darwin'
building '/nix/store/9zq1flz37q1w2w8rzd5c4m08f4b6nsbr-check-dolt.drv' on farm.numtide.com:50051
check-dolt> mac02: building 9zq1flz37q1w2w8rzd5c4m08f4b6nsbr-check-dolt.drv

upload niks3: ok