this derivation will be built:
  /nix/store/709bvddyqfncrx7gcb5n2ahm5m3v2nhz-iets-nextest-0.1.0.drv
farm.numtide.com:50051: failed to connect to all addresses; last error: UNKNOWN: ipv4:65.21.215.17:50051: connection attempt timed out before receiving SETTINGS frame, retrying
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy