these 2 derivations will be built:
  /nix/store/9s5i2av3axfgqmnamqc8kink9rdkzvip-eca-0.165.0.drv
  /nix/store/830dr9ip5rlzijw0grrv583sdkk5jhgp-check-eca.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy