these 3 derivations will be built:
  /nix/store/8hx2jb5m6ny1j5lzg2f165cvkjg2xf2q-iets-fuzzers-0.0.0.drv
  /nix/store/cznrgmd62aj35i1fbl732isa9nvf7d65-iets-fuzz-diff-0.0.0.drv
  /nix/store/02qhlsfy1myirqbi6imx7amrfmm25vpk-iets-fuzz-nar-check.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy