these 2 derivations will be built:
  /nix/store/2pzwsk2h7x6rxbrazp2l1hk320hlag47-tofu.drv
  /nix/store/qw1gb06qiggvrb7ijqnmxvd42amzyj6c-cache-new.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