Overwriting file on Windows gives PermissionDenied

[ChrisGreenaway]

Running this on Windows:

{
    let file = AtomicFile::new_with_tmpdir(&path, AllowOverwrite, &temporary_directory);
    file.write(|f| f.write_all(bytes1))?;
}
{
    let file = AtomicFile::new_with_tmpdir(&path, AllowOverwrite, &temporary_directory);
    file.write(|f| f.write_all(bytes2))?;
}

Sometimes gives:

WriteError(Internal(Os { code: 5, kind: PermissionDenied, message: "Access is denied." }))

Error seen on both Windows 7 and Windows 10.

[acheronfail]

I'm also seeing this on the windows-2019 GitHub Actions machines.

My test cases create a temporary directory, and atomic writes inside the directory fail with the same error that @ChrisGreenaway describes.