I seem to be missing something about how rustc-bisect works.  If I just run it with the two known bounds `cargo bisect-rustc --start=2023-08-08 --end=2023-08-09` then it just outputs this and bails:
```
testing...
RESULT: nightly-2023-08-08, ===> Yes
uninstalling nightly-2023-08-08

ERROR: the start of the range (nightly-2023-08-08) must not reproduce the regression
```