Looks like the Google Chrome Win bot (which was recently upgraded in Issue 649702) has a huge backlog because the last build [1] is taking more than 13 hours to complete.
The previous builds seem okay. Maybe there is some problem with goma?

I tried ssh-ing and remote desktop-ing into the bot but it's timing out (and I can connect to other -m1 bots).
I think the bot is chocking. Would be nice to understand why.

[1] https://build.chromium.org/p/chromium.chrome/builders/Google%20Chrome%20Win/builds/11303