this derivation will be built:
  /nix/store/1zqwr1gm1b5qlk972a7868s45z903qhw-check-docker-sbx.drv
this path will be fetched (0.0 KiB download, 253.9 MiB unpacked):
  /nix/store/8hip2hlwk21h0j5j5wr9crrg1f39zazl-docker-sbx-0.49.2
building '/nix/store/1zqwr1gm1b5qlk972a7868s45z903qhw-check-docker-sbx.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=21&system=aarch64-linux'
building '/nix/store/1zqwr1gm1b5qlk972a7868s45z903qhw-check-docker-sbx.drv' on farm.numtide.com:50051
check-docker-sbx> elastic-arm-52ccf228: building 1zqwr1gm1b5qlk972a7868s45z903qhw-check-docker-sbx.drv