Validate failures on 7.10 branch

[Simon Peyton Jones]

On a fresh build of the 7.10 branch, I get five validate failures on Linux. They are below.  Is this only me?
Simon
Unexpected failures:
   driver                 T8959a [bad stderr] (normal)
   th                     T10279 [stderr mismatch] (normal)
   typecheck/should_fail  T10534 [stderr mismatch] (normal)

Unexpected stat failures:
   perf/should_run  T4830 [stat not good enough] (normal)
   perf/should_run  T7436 [stat not good enough] (normal)
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