this derivation will be built:
  /nix/store/ca706z4m2k2ici8fmndmpjfc4mkg1sr1-treefmt-check.drv
[fddb:4344:343b:14b9:399:9324:19d9:3451]:50051: failed to connect to all addresses; last error: UNKNOWN: ipv6:%5Bfddb:4344:343b:14b9:399:9324:19d9:3451%5D:50051: tcp handshaker shutdown, retrying
[fddb:4344:343b:14b9:399:9324:19d9:3451]:50051: failed to connect to all addresses; last error: UNKNOWN: ipv6:%5Bfddb:4344:343b:14b9:399:9324:19d9:3451%5D:50051: tcp handshaker shutdown, retrying