To xdebug coworker tasks --pipe is required ie
coworker run --pipe="cv pipe"
coworker run --pipe="wmf-cv pipe"
or better
env PHP_IDE_CONFIG="serverName=civi" coworker run --pipe="wmf-cv pipe"
It worked & I merged it - but not quite sure how to upgrade coworker - in our buildkits
Looks like it needs a new release tagged at https://lab.civicrm.org/dev/coworker, then we'd update phars.json in civicrm-buildkit to point to the new download: https://github.com/civicrm/civicrm-buildkit/blob/master/phars.json#L27
Not sure if the phar is built automatically when a new tag is created in the coworker repo, or if that has to be done manually.
Cool! I still get a 404 at https://download.civicrm.org/coworker/coworker-0.8.phar though - did you figure out if that phar generation was automated?
Merged - do this