this derivation will be built:
  /nix/store/sr5bmrza3qgywjzrbqzlj0l309z47hwc-vm-test-run-nix-grpc-farm.drv
error: Cannot build '/nix/store/sr5bmrza3qgywjzrbqzlj0l309z47hwc-vm-test-run-nix-grpc-farm.drv'.
       Reason: builder failed with exit code 143.
       Output paths:
         /nix/store/qsc4rij7aar571jcb1hgjd2jxn3vzpp8-vm-test-run-nix-grpc-farm
       Last 25 log lines:
       > thread 'farm::serial::the_first_client_leaving_does_not_fail_the_second' (2322) panicked at harness.rs:200:5:
       > [client] ssh connection lost: systemctl kill -s INT share1
       > Failed to send CONNECT to /build/tmprqn109gq/client_host.socket:22: Broken pipe
       > mm_receive_fd: recvmsg: expected received 1 got 0
       > proxy dialer did not pass back a connection
       >
       > note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
       > FAILED
       > test farm::serial::timeout_and_max_silent_time_reach_the_builder ...
       > thread 'farm::serial::timeout_and_max_silent_time_reach_the_builder' (2373) 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/tmprqn109gq/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' (2378) 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/tmprqn109gq/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 ... Terminated                 /nix/store/s0w8fvgd3glbwrqiqcl6inb0wz74bv4a-nixos-test-driver-nix-grpc-farm/bin/nixos-test-driver -o $out
       For full logs, run:
         nix log /nix/store/sr5bmrza3qgywjzrbqzlj0l309z47hwc-vm-test-run-nix-grpc-farm.drv