these 2 derivations will be built:
  /nix/store/2i1i1208n8ny1hygh8rdcma36f694yf6-closure-info.drv
  /nix/store/zkliwimwadsfya8hw4la7jhzb93yl8wf-check-vars.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy