"operation not permitted" when running tests on Windows

When I run ghc tests on windows using "make test", I see instances of the following:

> T5442d(normal) 86 of 4093 [0, 1, 0]

cd ./cabal && $MAKE -s --no-print-directory T5442d </dev/null >T5442d.run.stdout 2>T5442d.run.stderr [Errno 1] Operation not permitted: './cabal/package.conf.T5442d.global' [Errno 90] Directory not empty: './cabal/package.conf.T5442d.global' [Errno 1] Operation not permitted: './cabal/package.conf.T5442d.user' [Errno 90] Directory not empty: './cabal/package.conf.T5442d.user' [Errno 1] Operation not permitted: './cabal/package.conf.T5442d.extra'

Not sure if these are legitimately harmful, but something is going wrong.

I am running ghc head on latest msys2. I also tried running the process as administrator to rule out permission issues due to handling symlinks.

Trac metadata

Trac field	Value
Version	7.9
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
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Operating system
Architecture