How to test after migration from 0.9.x

I migrated from 0.9.x to 0.11.

The build works fine but tests are broken the old way. When testing teh kernel there is no executable, what I can understand. But when testing the parent directory only the crate itself will be tested. When testing the parent directory with --workspace option there is no target transferred to the kernel build, which leads to the error:

"error: language item required, but not found: `eh_personality`
 |
  = note: this can occur when a binary crate with `#![no_std]` is compiled for a target where `eh_personality` is defined in the standard library
  = help: you may be able to compile for a target that doesn't need `eh_personality`, specify a target with `--target` or in `.cargo/config`

I guess there is an option to pass the target even in test build mode. But I didn't find yet.

Thanks in advane!

Start by reviewing the 0.9.x-to-0.11 migration context and the kernel and parent-directory test commands described in the issue, including the parent-directory command with --workspace. Reproduce the missing-target and eh_personality errors, then establish and document a working test invocation or identify the required target transfer behavior.