this derivation will be built:
  /nix/store/ly3w7dgan5ia21whw7ib11h30zd1y50l-spec-isort.drv
building '/nix/store/ly3w7dgan5ia21whw7ib11h30zd1y50l-spec-isort.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/ly3w7dgan5ia21whw7ib11h30zd1y50l-spec-isort.drv' on farm.numtide.com:50051
spec-isort> elastic-arm-976bb8e2: building ly3w7dgan5ia21whw7ib11h30zd1y50l-spec-isort.drv
spec-isort> Fixing /build/shallow/a.py
spec-isort> Fixing /build/deep/x/y/a.py

upload niks3: ok