always dump sources of checkdocs project on disk (#3461)
always dump sources of checkdocs project on disk (#3461)


playi/pxt,Microsoft/pxt,Microsoft/pxt,Microsoft/pxt,Microsoft/pxt,switch-education/pxt,Microsoft/pxt,switch-education/pxt,switch-education/pxt,switch-education/pxt,playi/pxt,switchinnovations/pxt,switchinnovations/pxt,switchinnovations/pxt,playi/pxt,playi/pxt,switch-education/pxt,switchinnovations/pxt