these 3 derivations will be built:
  /nix/store/hcprm4592caniabkmybics82y9pjl8nb-iets-fuzzers-0.0.0.drv
  /nix/store/zd1a7cxnkaf41alb2mzvzq3dx54lmmdz-iets-fuzz-diff-0.0.0.drv
  /nix/store/7mv0l3ii8zi9mmff5m4fybpbiw8vm9qr-iets-fuzz-eval-check.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy