these 2 derivations will be built:
  /nix/store/8bcsacim3vrcvpwxasyrcprad5n3ww74-reasonix-1.39.6.drv
  /nix/store/9vg9dm1xs47b42cnfsfmdn9504wl8wgx-check-reasonix.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy