these 2 derivations will be built:
  /nix/store/s977s402cas0gbgfqfm3d3q0bxnqkjm6-handy-0.9.8.drv
  /nix/store/8z9dg7mvi4sny5z19lif0c8wcw0lmrxi-check-handy.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy