these 2 derivations will be built:
  /nix/store/sh16gh8pp92zfwqmsqfcvla2vqsz5das-iets-0.1.0.drv
  /nix/store/rkrdxyb2l895rd16pr28md4fwf6i3wpp-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
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy