these 5 derivations will be built:
  /nix/store/qyyn8i4cywgshwwsjrsd4va3vvgph563-Cargo.toml.drv
  /nix/store/29670xvyihyb8qxw8fgg1x63m1a83f4c-source.drv
  /nix/store/yxadjic1qy3d45lb5lwk0s1q7lwyr7q3-iets-deps-0.1.0.drv
  /nix/store/fyig2j777f0xyfyr009hjzh1cv95wyh1-iets-0.1.0.drv
  /nix/store/my5fhyk0zp37bfff3fr4yx7gwgh2gf91-iets-langtests.drv
building '/nix/store/my5fhyk0zp37bfff3fr4yx7gwgh2gf91-iets-langtests.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/my5fhyk0zp37bfff3fr4yx7gwgh2gf91-iets-langtests.drv' on farm.numtide.com:50051
iets-langtests> elastic-arm-0a911f46: building my5fhyk0zp37bfff3fr4yx7gwgh2gf91-iets-langtests.drv
iets-langtests> pass=291 fail=0
iets-langtests> 

upload niks3: ok