these 2 derivations will be built:
  /nix/store/pxcxzncc6qfr0c8mkcdyy8mn1r9mlirw-clan-runtime.drv
  /nix/store/m91vacxz1yidzqf56i6hy1s16n98vzqb-clan.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy