these 2 derivations will be built:
  /nix/store/chh1xwkd47wjfn3yhhivkicvsp5rsc2c-iets-0.1.0.drv
  /nix/store/8rzwdm91ai4r94m4nvhwfv1807aawj4s-iets-linttest.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy