NPM error in pod log

In the GitHub sync log, I see the following error:

> node src/Sync.js -c --verbose=true --tls-min-v1.0
npm ERR! code EACCES
npm ERR! syscall mkdir
npm ERR! path /.npm
npm ERR! errno -13
npm ERR!
npm ERR! Your cache folder contains root-owned files, due to a bug in
npm ERR! previous versions of npm which has since been addressed.
npm ERR!
npm ERR! To permanently fix this problem, please run:
npm ERR! sudo chown -R 1000630000:0 "/.npm"
npm ERR! Log files were not written due to an error writing to the directory: /.npm/_logs
npm ERR! You can rerun the command with `--loglevel=verbose` to see the logs in your terminal

This does not seem to break the sync process, but (at least) for good log hygiene it should be fixed.