this derivation will be built:
  /nix/store/3gkk5v1g68fcpswsb5p7vayx8hpbpvfy-treefmt.toml.drv
this path will be fetched (7.2 MiB download, 22.9 MiB unpacked):
  /nix/store/wh8jmajk1zxap2i5z80ri12q31s9ahjk-rumdl-0.2.73
building '/nix/store/3gkk5v1g68fcpswsb5p7vayx8hpbpvfy-treefmt.toml.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-linux'
building '/nix/store/3gkk5v1g68fcpswsb5p7vayx8hpbpvfy-treefmt.toml.drv' on farm.numtide.com:50051
treefmt.toml> elastic-arm-8d70e30a: building 3gkk5v1g68fcpswsb5p7vayx8hpbpvfy-treefmt.toml.drv
treefmt.toml> structuredAttrs is enabled

upload niks3: ok