T14702 fails assertion (file rts\Stats.c, line 1411) on validate-x86_64-windows-hadrian

I have had three validate-x86_64-windows-hadrian CI jobs fail recently (examples here, here, and here) due to this assertion failure:

Wrong exit code for T14702(threaded1)(expected 0 , actual 3 )
Stdout ( T14702 ):
initial: (2704,273678336)
with large allocation: (1200101144,1531969536)
final: (60320,273678336)
alloc ratio 1.0
Stderr ( T14702 ):
T14702.exe: internal error: ASSERTION FAILED: file rts\Stats.c, line 1411

    (GHC version 9.1.0.20201113 for x86_64_unknown_mingw32)
    Please report this as a GHC bug:  https://www.haskell.org/ghc/reportabug
*** unexpected failure for T14702(threaded1)

This was originally reported here, but the assertion that failed in #17964 (closed) is likely different from the assertion in this issue.

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