set "file=C:outputsummary.txt"
for /f %%F in (findstr /I "FAIL" %file% | find /I /C "FAIL") do (
    set count=%%F
)

if count neq 0 exit /B 1
exit /B 0

| was unexpected at this time.

set "file=C:outputsummary.txt"
find /C "FAIL" %file%
if "%ERRORLEVEL%"=="0" (
    exit /B 1
) else (
    exit /B 0
)