these 5 derivations will be built:
  /nix/store/091bj61y0ndwbm5x0sa1qk1kwqw09xpd-clan-runtime.drv
  /nix/store/h54sa04s4djb6iwa0cadlhv7p22awhbj-clan-cli-source.drv
  /nix/store/5q7j0d9iq02asg7d3drx6md1vq5xbxyk-clan-cli.drv
  /nix/store/sqwd8iinsg7nbz0qmnyf0n40ganm032l-tofu.drv
  /nix/store/sjhyma95y7ixij8lysapdrddly2hx5k8-cache-new.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy