these 2 derivations will be built:
  /nix/store/2jcm7z0bjzj98ldp1851bqy1sy0l9nf9-coco-1.2.45+061229.2a20c0482251.drv
  /nix/store/6i2qw66vjk69k2iipyhqqk98vdbbgv91-check-coco.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy