these 3 derivations will be built:
  /nix/store/9prcksxrjrp60qy2mirlds97bp3dw31i-iets-fuzzers-0.0.0.drv
  /nix/store/dlkn230psiy6f0mq4vg0g21wvd4mgd3h-iets-fuzz-diff-0.0.0.drv
  /nix/store/x21sq58bgs8whv9z37kw5yzlxhai8r6v-iets-fuzz-drv-eval-check.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy