https://build.chromium.org/p/chromium.win/builders/Win%20Builder%20(dbg)

package_build step took 1 h 30 min in this build: https://build.chromium.org/p/chromium.win/builders/Win%20Builder%20%28dbg%29/builds/35324

Same with the next. Seems to be the uploading that takes time; I looked at the progress a few times. I saw similar problems on other bots too, so probably a general infra problem.