You could also try with
{"configurations": [ {"name": "Python: Scrapy","type": "python","request": "launch","module": "scrapy","cwd": "${fileDirname}","args": ["crawl","${fileBasenameNoExtension}","--loglevel=ERROR" ],"console": "integratedTerminal","justMyCode": false } ]}
but the name of the field should be the same than the spiders name.
The --loglevel=ERROR is to get an output less verbose ;)