1this derivation will be built:2 /nix/store/377hh34zsx3qgfj0azbvpjj5frbd87rw-mpv-convert-script-2016-03-18.drv3these 7 paths will be fetched (4.8 MiB download, 28.1 MiB unpacked):4 /nix/store/df5wzcvmwlnmcc0pw9z9h2sgq9ij5dvq-fmt-7.1.35 /nix/store/6ghnsh9ha5jxbw6a2b611k6jjk1zm7wg-fmt-7.1.3-dev6 /nix/store/i7cdswgfvrdbqw96cmk28m7jccgbr9s5-libebml-1.4.47 /nix/store/wjg5d1q9xyjd6isx7h56nx69jzkwk650-libmatroska-1.7.18 /nix/store/n3mhhlk3l1qasw4nsbr29mj78bwnfmhr-mkvtoolnix-73.0.09 /nix/store/v2v4lblycv6cmfdybyazp63ggvzhxrkn-nlohmann_json-3.11.210 /nix/store/4m285fmh21lpvds7mlq6kd02w3y6dhg8-yad-12.111warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy