this derivation will be built:
  /nix/store/p3fnfqfh2qsgs6i7vs0zg2xm7clzzicl-spec-buildifier.drv
building '/nix/store/p3fnfqfh2qsgs6i7vs0zg2xm7clzzicl-spec-buildifier.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-linux'
building '/nix/store/p3fnfqfh2qsgs6i7vs0zg2xm7clzzicl-spec-buildifier.drv' on farm.numtide.com:50051
spec-buildifier> elastic-arm-976bb8e2: building p3fnfqfh2qsgs6i7vs0zg2xm7clzzicl-spec-buildifier.drv
spec-buildifier> invalid/BUILD.bazel:3:1: syntax error
spec-buildifier> invalid/BUILD.bazel # reformat
spec-buildifier> invalid/BUILD.bazel:3:1: syntax error
spec-buildifier> invalid/BUILD.bazel # reformat

upload niks3: ok