this derivation will be built:
  /nix/store/82p19syz6g4w1yyinrgjlx6ai4lmwf8p-iets-doc-0.1.0.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy