If garbage is found in the instrumentation timestamp file, rather than a timestamp, this should be logged as a warning (because if there is garbage there, there may be a problem and seeing that warning may help debug the problem), but it should not cause the build to fail, rather it should just treat it as if there is no timestamp file, and overwrite it later.
If garbage is found in the instrumentation timestamp file, rather than a timestamp, this should be logged as a warning (because if there is garbage there, there may be a problem and seeing that warning may help debug the problem), but it should not cause the build to fail, rather it should just treat it as if there is no timestamp file, and overwrite it later.