This answer[1] on how to use the submit api mentions a .sonar/scanner-report directory but I dont see that being created in my test runs using sonar-scanner-cli-4.7.0.2747-linux. The $HOME/.sonar directory only contains cache and _tmp where _tmp is empty, and cache contains jars and zipfiles. The workspace .scannework directory is also empty.
[1] How to use submit api(api/ce/submit) construct the request by myself - #2 by ganncamp