```
% pandoc -f html -t native --verbose
^D
2> [INFO] Skipped '' at input line 1 column 16
[]
```
```
% pandoc -f html -t native --verbose
^D
2> [INFO] Fetching h:invalid@url...
2> [WARNING] Could not fetch resource h:invalid@url: Could not fetch h:invalid@url
2> InvalidUrlException "h:invalid@url" "Invalid scheme"
2> [INFO] Skipped '' at input line 1 column 29
[]
```