Ease debugging BaselineNeonErrorFormatterIntegrationTest

Author: staabm

tests/PHPStan/Command/ErrorFormatter/BaselineNeonErrorFormatterIntegrationTest.php

@@ -69,9 +69,9 @@ private function runPhpStan(
 			throw new ShouldNotHappenException();
 		}
 		chdir(__DIR__ . '/../../../..');
-		exec(sprintf('%s %s clear-result-cache %s', escapeshellarg(PHP_BINARY), 'bin/phpstan', $configFile !== null ? '--configuration ' . escapeshellarg($configFile) : ''), $clearResultCacheOutputLines, $clearResultCacheExitCode);
+		exec(sprintf('%s %s clear-result-cache %s', escapeshellarg(PHP_BINARY), 'bin/phpstan', $configFile !== null ? '--configuration ' . escapeshellarg($configFile) : '') . ' 2>&1', $clearResultCacheOutputLines, $clearResultCacheExitCode);
 		if ($clearResultCacheExitCode !== 0) {
-			throw new ShouldNotHappenException('Could not clear result cache.');
+			throw new ShouldNotHappenException('Could not clear result cache:' . "\n" . implode("\n", $clearResultCacheOutputLines));
 		}
 
 		exec(sprintf('%s %s analyse --no-progress --error-format=%s --level=7 %s %s%s', escapeshellarg(PHP_BINARY), 'bin/phpstan', $errorFormatter, $configFile !== null ? '--configuration ' . escapeshellarg($configFile) : '', escapeshellarg($analysedPath), $baselineFile !== null ? ' --generate-baseline ' . escapeshellarg($baselineFile) : ''), $outputLines);