Tests seem to fail on AppVeyor

[ufobat]

===> Testing: File::Temp
t/01-load.t ....... ok
t/02-stress_gc.t .. 
Dubious, test returned 255 (wstat 65280, 0xff00)
Failed 1/2 subtests 
t/03-tempfile.t ... 
Dubious, test returned 2 (wstat 512, 0x200)
Failed 2/14 subtests 
Test Summary Report
-------------------
t/02-stress_gc.t (Wstat: 65280 Tests: 1 Failed: 0)
  Non-zero exit status: 255
  Parse errors: Bad plan.  You planned 2 tests but ran 1.
t/03-tempfile.t (Wstat: 512 Tests: 14 Failed: 2)
  Failed tests:  11-12
  Non-zero exit status: 2
Files=3, Tests=17,  4 wallclock secs ( 0.06 usr +  0.00 sys =  0.06 CPU)
Result: FAIL

[stmuk]

And Windows 2017.07

===> Testing: File::Temp
===SORRY!===
Failed to remove the file 'C:\Users\steve\AppData\Local\Temp\duXgsfpcWN': Failed to delete file: 0
# Looks like you planned 2 tests, but ran 1

# Failed test 'file C:\Users\steve\AppData\Local\Temp\foodNBZ55KZ4K was unlinked'
# at t/03-tempfile.t line 23

# Failed test 'file C:\Users\steve\AppData\Local\Temp\pfFolyZeWS.txt was unlinked'
# at t/03-tempfile.t line 23
# Looks like you failed 2 tests of 14

===> Testing [FAIL]: File::Temp