diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index 967f79dcd..87cd149eb 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -53,4 +53,4 @@ jobs:
       - name: Run PHPStan
         run: |
           bin/composer require --dev phpstan/phpstan:^0.12 phpunit/phpunit:^7.5 --with-all-dependencies
-          vendor/bin/phpstan analyse --configuration=phpstan/config.neon --error-format=checkstyle | cs2pr
+          vendor/bin/phpstan analyse --configuration=phpstan/config.neon || vendor/bin/phpstan analyse --configuration=phpstan/config.neon --error-format=checkstyle | cs2pr
diff --git a/phpstan/config.neon b/phpstan/config.neon
index 8b8bf62ce..d9bf7f8c6 100644
--- a/phpstan/config.neon
+++ b/phpstan/config.neon
@@ -27,12 +27,6 @@ parameters:
 
         # BC with older PHPUnit
         - '~^Call to an undefined static method PHPUnit\\Framework\\TestCase::setExpectedException\(\)\.$~'
-
-        # hhvm should have support for $this in closures
-        -
-            count: 1
-            message: '~^Using \$this inside anonymous function is prohibited because of PHP 5\.3 support\.$~'
-            path: '../tests/Composer/Test/Repository/PlatformRepositoryTest.php'
     paths:
         - ../src
         - ../tests
diff --git a/src/Composer/Command/CreateProjectCommand.php b/src/Composer/Command/CreateProjectCommand.php
index b872c557a..de6701ce4 100644
--- a/src/Composer/Command/CreateProjectCommand.php
+++ b/src/Composer/Command/CreateProjectCommand.php
@@ -310,7 +310,7 @@ EOT
         }
 
         $process = new ProcessExecutor($io);
-        $fs = new Filesystem($fs);
+        $fs = new Filesystem($process);
         if (!$fs->isAbsolutePath($directory)) {
             $directory = getcwd() . DIRECTORY_SEPARATOR . $directory;
         }