this derivation will be built:
  /nix/store/c1hbm1nrb54hp4a564f5yyngz9sawyff-iets-langtests.drv
building '/nix/store/c1hbm1nrb54hp4a564f5yyngz9sawyff-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/c1hbm1nrb54hp4a564f5yyngz9sawyff-iets-langtests.drv' on farm.numtide.com:50051
iets-langtests> elastic-arm-f473417b: building c1hbm1nrb54hp4a564f5yyngz9sawyff-iets-langtests.drv
iets-langtests> pass=290 fail=0
iets-langtests> 
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy

upload niks3: ok