this derivation will be built:
  /nix/store/wal0lbj97n2ymsh0ffrz3zw8l5wryskp-vm-test-run-nix-grpc-store-main.drv
error: Cannot build '/nix/store/wal0lbj97n2ymsh0ffrz3zw8l5wryskp-vm-test-run-nix-grpc-store-main.drv'.
       Reason: builder failed with exit code 143.
       Output paths:
         /nix/store/sz5rif0ncifq7mpw1rqp33q2h7c42bdi-vm-test-run-nix-grpc-store-main
       Last 25 log lines:
       > machine # [  549.088582] systemd-logind[604]: Removed session 315.
       > [600.07s] timeout reached; test terminating...
       > [600.19s] kill QemuMachine (pid 46)
       > machine # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/lq2fsnmg0q3y0vlxn91w8s8wvj1m6fld-python3-3.14.8/bin/python3.14)
       > machine # [2026-11-12T08:15:48Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-11-12T08:15:48Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-11-12T08:15:48Z INFO  virtiofsd] Client disconnected, shutting down
       >
       > thread 'transfer::many_small_paths_round_trip' (814) panicked at harness.rs:200:5:
       > [machine] ssh connection lost: sh -c 'head -c "$1" /dev/urandom | base64 > "$2"' sh 4096 /root/small/files/f121
       >
       > note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
       > test transfer::many_small_paths_round_trip ... FAILED
       >
       > failures:
       >
       > failures:
       >     transfer::many_small_paths_round_trip
       >
       > test result: FAILED. 19 passed; 1 failed; 0 ignored; 0 measured; 44 filtered out; finished in 373.65s
       >
       > [600.26s] !!! Test "transfers, access control, logs and metrics" failed with error: "Command '['/nix/store/7dl6ys9xkns3bhzzrfgaw6yq2415nq03-nix-grpc-e2e/bin/nix-grpc-e2e', 'transfer::', 'access::', '--test-threads=4', '--nocapture']' returned non-zero exit status 101."
       > [600.26s] cleanup
       > [600.26s] kill QemuMachine (pid 46)
       > Terminated                 /nix/store/61qivmdxa5armz0xkq7k556jj3xcv34s-nixos-test-driver-nix-grpc-store-main/bin/nixos-test-driver -o $out
       For full logs, run:
         nix log /nix/store/wal0lbj97n2ymsh0ffrz3zw8l5wryskp-vm-test-run-nix-grpc-store-main.drv