Log exceptions to file

[LGBitencourt]

For some reason, winston is not logging the exceptions.

[victorsenam]

Did b3610f1 solve this?

[LGBitencourt]

No

[gabrielrussoc]

somehow it seems to be working now...

the only thing I did was to delete the old log file and let the app create it, but I'm not sure if this is the real reason

[victorsenam]

Not working. Apparently winston only tracks exceptions on files where it has been required.
This thread suggests that we should add logger in every file. It is enough to require winston since we are using the default Logger instance of winston.

[victorsenam]

Still not working. The bot shut down unexpectedly during a fetch (non-scheduled, therefore, requested) and did not print a trace.
logger is included in every file related to this process: app.js,fetch.js,every file inside fetchers and msg_handlers/contest_list.js. Did I miss something?
Maybe it is required to include winston instead of logger.js. I can't understand why, though.