these 2 derivations will be built:
  /nix/store/s99lmp0wy049yk01n13ydfifaqds13mq-cargo-vendor-dir.drv
  /nix/store/cadpp64q8568437lb1aqq07k4q0ygih8-horae-clippy-0.1.0.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy