[BE] Fail build when project config uses custom extensions outside of analysed paths

Author: ondrejmirtes

changelog-2.0.md

@@ -93,8 +93,6 @@ Bleeding edge (TODO move to other sections)
 * Deprecated: returning plain strings as errors, use RuleErrorBuilder
     * Learn more: [Using RuleErrorBuilder to enrich reported errors in custom rules](https://phpstan.org/blog/using-rule-error-builder)
 * Deprecated: returning RuleError without identifier (https://github.com/phpstan/phpstan-src/commit/969e6fa31d5484d42dab902703cfc6820a983cfd)
-* Fail build when project config uses custom extensions outside of analysed paths
-    * This will only occur after a run that uses already present and valid result cache
 * Check if required file exists ([#3294](https://github.com/phpstan/phpstan-src/pull/3294)), #3397, thanks @Bellangelo!
 * Check generics `@method` `@template` tags above traits (https://github.com/phpstan/phpstan-src/commit/aadbf62d3ae4517fc7a212b07130bedcef8d13ac)
 * Check `@mixin` PHPDoc tag above traits (https://github.com/phpstan/phpstan-src/commit/0d0de946900adf4eb3c799b1b547567536e23147)
@@ -140,6 +138,8 @@ Improvements 🔧
     * This fixes following **17 issues**: #8166, #8127, #7944, #7283, #6653, #6196, #9084, #8683, #8074, #7984, #7301, #7087, #5594, #5592, #9472, #9764, #10092
 * Non-static methods cannot be used as static callables in PHP 8+ ([#2420](https://github.com/phpstan/phpstan-src/pull/2420)), thanks @staabm!
 * Analysis with zero files results in non-zero exit code (https://github.com/phpstan/phpstan-src/commit/46ff440648e62617df86aa74ba905ffa99897737), #9410
+* Fail build when project config uses custom extensions outside of analysed paths
+    * This will only occur after a run that uses already present and valid result cache
 
 Bugfixes 🐛
 =====================

src/Command/AnalyseCommand.php

@@ -503,12 +503,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 
 				$errorOutput->writeLineFormatted('');
 
-				$bleedingEdge = (bool) $container->getParameter('featureToggles')['projectServicesNotInAnalysedPaths'];
-				if ($bleedingEdge) {
-					return $inceptionResult->handleReturn(1, $analysisResult->getPeakMemoryUsageBytes(), $this->analysisStartTime);
-				}
-
-				$errorOutput->getStyle()->warning('This will cause a non-zero exit code in PHPStan 2.0.');
+				return $inceptionResult->handleReturn(1, $analysisResult->getPeakMemoryUsageBytes(), $this->analysisStartTime);
 			}
 		}