these 2 derivations will be built:
  /nix/store/x9klbp5icy0smy4gzd21z1kj712ks060-options.json.drv
  /nix/store/vg3432pwcjms0pi15j2gggvl2633piil-options.md.drv
building '/nix/store/x9klbp5icy0smy4gzd21z1kj712ks060-options.json.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'
warning: x9klbp5icy0smy4gzd21z1kj712ks060-options.json.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}, waiting up to 120s for a worker
building '/nix/store/x9klbp5icy0smy4gzd21z1kj712ks060-options.json.drv' on farm.numtide.com:50051
options.json> elastic-arm-952b3f3a: building x9klbp5icy0smy4gzd21z1kj712ks060-options.json.drv
building '/nix/store/vg3432pwcjms0pi15j2gggvl2633piil-options.md.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/vg3432pwcjms0pi15j2gggvl2633piil-options.md.drv' on farm.numtide.com:50051
options.md> elastic-arm-952b3f3a: building vg3432pwcjms0pi15j2gggvl2633piil-options.md.drv
options.md> structuredAttrs is enabled

upload niks3: ok