Success

[debug] System config: []
[debug] User config: [u'--no-part', u'-f', u'bestvideo+bestaudio/best']
[debug] Custom config: []
[debug] Command-line args: [u'-f', u'313', u'--verbose', u'https://www.youtube.com/watch?v=vcaXm9dgcpI']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.05.11
[debug] Python version 2.7.16 (CPython) - Darwin-18.5.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 4.1.3, ffprobe 4.1.3, rtmpdump 2.4
[debug] Proxy map: {}
[youtube] vcaXm9dgcpI: Downloading webpage
[youtube] vcaXm9dgcpI: Downloading video info webpage
[debug] Invoking downloader on u'https://r5---sn-4g5e6ne6.googlevideo.com/videoplayback?id=o-ACmQWopMaO5K37eGoKS0ixv3ay56_L4h67_fC-Jm2fqZ&aitags=133%2C134%2C135%2C136%2C137%2C160%2C242%2C243%2C244%2C247%2C248%2C271%2C278%2C313%2C394%2C395%2C396%2C397&itag=313&source=youtube&requiressl=yes&mm=31%2C29&mn=sn-4g5e6ne6%2Csn-4g5ednsr&ms=au%2Crdu&mv=m&pl=19&ei=TV_bXLCdE5mHgAe7hq7gBQ&initcwndbps=1238750&mime=video%2Fwebm&gir=yes&clen=448300591&dur=403.102&lmt=1557351686431380&mt=1557880533&fvip=5&keepalive=yes&c=WEB&txp=3516222&ip=159.122.122.122&ipbits=0&expire=1557902253&sparams=ip%2Cipbits%2Cexpire%2Cid%2Caitags%2Csource%2Crequiressl%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Cei%2Cinitcwndbps%2Cmime%2Cgir%2Cclen%2Cdur%2Clmt&signature=2AC3AA02486BD63ECCCB1EE9D69577DAF6A9A30F.812C02CF6FF0A68869DA8918EF7E7C087C480686&key=yt8&ratebypass=yes'
[download] Destination: Google Pixel 3a Impressions - Flips the Script!-vcaXm9dgcpI.webm
[download] 100% of 427.53MiB in 01:24