these 3 derivations will be built:
  /nix/store/9ypwzhq2lqbmz5g2qpzcc9j7pzwqfq80-iets-fuzz-diff-0.0.0.drv
  /nix/store/vchq7mbkh8jvli5np2snp72m66axbmxk-iets-fuzzers-0.0.0.drv
  /nix/store/b1jd1h304ay53flbbz8mwpz3r8mlaxkp-iets-fuzz-drv-check.drv
building '/nix/store/vchq7mbkh8jvli5np2snp72m66axbmxk-iets-fuzzers-0.0.0.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'
could not copy /nix/store/b89kync6mag2a7x97ajy15mlpqbfgnk5-iets-fuzzers-0.0.0: error: gRPC FetchNars failed: Stream removed (Socket closed)
error: some outputs are unexpectedly invalid