this derivation will be built:
  /nix/store/dv6g7b8k86wnwica7s4xxsp8q99kf4w0-vm-test-run-nix-grpc-farm.drv
error: Cannot build '/nix/store/dv6g7b8k86wnwica7s4xxsp8q99kf4w0-vm-test-run-nix-grpc-farm.drv'.
       Reason: builder failed with exit code 143.
       Output paths:
         /nix/store/ii8y650hj4s6icqprbahazwkv3mh4jab-vm-test-run-nix-grpc-farm
       Last 25 log lines:
       > proxy dialer did not pass back a connection
       >
       > FAILED
       > test farm::serial::timeout_and_max_silent_time_reach_the_builder ...
       > thread 'farm::serial::timeout_and_max_silent_time_reach_the_builder' (2107) panicked at harness.rs:200:5:
       > [worker1] ssh connection lost: sh -c 'systemctl is-active -q nix-grpc-daemon.service || systemctl start nix-grpc-daemon.service'
       > Failed to receive OK from /build/tmp_ud__ldz/worker1_host.socket: Connection reset by peer
       > mm_receive_fd: recvmsg: expected received 1 got 0
       > proxy dialer did not pass back a connection
       >
       > FAILED
       > test farm::serial::two_clients_wanting_the_same_drv_build_it_once ...
       > thread 'farm::serial::two_clients_wanting_the_same_drv_build_it_once' (2112) panicked at harness.rs:200:5:
       > [worker1] ssh connection lost: sh -c 'systemctl is-active -q nix-grpc-daemon.service || systemctl start nix-grpc-daemon.service'
       > Failed to receive OK from /build/tmp_ud__ldz/worker1_host.socket: Connection reset by peer
       > mm_receive_fd: recvmsg: expected received 1 got 0
       > proxy dialer did not pass back a connection
       >
       > FAILED
       > test farm::serial::upload_whose_reference_the_worker_lacks_is_completed_from_the_cache ... kill QemuMachine (pid 62)
       > worker2 # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/lq2fsnmg0q3y0vlxn91w8s8wvj1m6fld-python3-3.14.8/bin/python3.14)
       > worker2 # [2026-11-06T20:28:20Z INFO  virtiofsd] Client disconnected, shutting down
       > worker2 # [2026-11-06T20:28:20Z INFO  virtiofsd] Client disconnected, shutting down
       > worker2 # [2026-11-06T20:28:20Z INFO  virtiofsd] Client disconnected, shutting down
       > Terminated                 /nix/store/48589vgand7vk7py6s9dcyaa36kg5bhg-nixos-test-driver-nix-grpc-farm/bin/nixos-test-driver -o $out
       For full logs, run:
         nix log /nix/store/dv6g7b8k86wnwica7s4xxsp8q99kf4w0-vm-test-run-nix-grpc-farm.drv