this derivation will be built:
  /nix/store/m4sx2gajcipxqfvs43ys287n7rqqdh7j-check-dolt.drv
building '/nix/store/m4sx2gajcipxqfvs43ys287n7rqqdh7j-check-dolt.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/m4sx2gajcipxqfvs43ys287n7rqqdh7j-check-dolt.drv' on farm.numtide.com:50051
check-dolt> elastic-arm-5d407235: building m4sx2gajcipxqfvs43ys287n7rqqdh7j-check-dolt.drv
could not copy /nix/store/psfl32nlm6caf5p4iffwhf6qp3gz79fp-check-dolt: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNAVAILABLE: ipv4:65.21.215.17:50051: Handshake read failed (Endpoint closing)
error: some outputs are unexpectedly invalid