Upgrade stuck on rebuilding assets

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I'm trying to upgrade nodebb to 1.13 from 1.6 and the update process updates schema (yay!) but then gets stuck on assets:

Updating NodeBB...

1. Updating package.json file with defaults...  OK

2. Bringing base dependencies up to date...  started
npm WARN nodebb-plugin-emoji-android@2.0.0 requires a peer of nodebb-plugin-emoji@^2.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN textcomplete.contenteditable@0.1.1 requires a peer of textcomplete@^0.14.2 but none is installed. You must install peer dependencies yourself.

audited 4084 packages in 9.988s
found 15 vulnerabilities (4 low, 2 moderate, 9 high)
  run `npm audit fix` to fix them, or `npm audit` for details

3. Checking installed plugins for updates...  OK
4. Updating NodeBB data store schema...[benchpressjs] Unable to build or find a suitable native module, falling back to JS version

Parsing upgrade scripts... 
OK | 0 script(s) found, 82 skipped
Schema update complete!


5. Rebuilding assets...  started

Is there any way to ask for more logs to understand what is going on?
Thanks!

[tigger]

And I seem to have this hanging on multiple commands:

./nodebb build
[benchpressjs] Unable to build or find a suitable native module, falling back to JS version
  started

(hangs)

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Only error I see is:

2019-11-24T11:47:32.340Z [4567/1551] - error: db.initSessionStore is not a function

on trying to run it, but I presume this is caused by incomplete build..

[tigger]

Nevermind. Fixed by repo reset..