this derivation will be built:
  /nix/store/3ifcj96c68lr7mqpcddrxzkn7vw2n54y-treefmt.toml.drv
this path will be fetched (3.5 MiB download, 8.9 MiB unpacked):
  /nix/store/vfh4abb5fqwpywjhk3zjpc2khsv5x3qd-dyff-1.12.0
building '/nix/store/3ifcj96c68lr7mqpcddrxzkn7vw2n54y-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/3ifcj96c68lr7mqpcddrxzkn7vw2n54y-treefmt.toml.drv' on farm.numtide.com:50051
treefmt.toml> elastic-arm-234f8218: building 3ifcj96c68lr7mqpcddrxzkn7vw2n54y-treefmt.toml.drv
treefmt.toml> structuredAttrs is enabled

upload niks3: ok