Serialization\YamlTest test failure

I am getting a testing failure from the Serialization Component when running PHPUnit tests.

Environment:

PHP: 7.1.5
OS: Linux - Alpine v3.4.6
Drupal: 8.3.2

Yaml extension installed via:

pecl install yaml-2.0.0

Running tests:

cd core
../vendor/bin/phpunit --testsuite=unit  -v

Results in:

There was 1 failure:

1) Drupal\Tests\Component\Serialization\YamlTest::testYamlFiles with data set #178 ('/home/app/src/docroot/core/mo...es.yml')
/home/app/src/docroot/core/modules/config/tests/config_test/config/install/config_test.types.yml
Failed asserting that two arrays are equal.
--- Expected
+++ Actual
@@ @@
 Array ('array' => Array ()'boolean' => true
-    'exp' => 1.2E+34
-    'float' => 3.14159
+    'exp' => 1.2000000000000467E+34
+    'float' => 3.1415900000001784'float_as_integer' => 1.0'hex' => 12'int' => 99'octal' => 509'string' => 'string''string_int' => '1'
 )

/home/app/src/docroot/core/tests/Drupal/Tests/Component/Serialization/YamlTest.php:71

Looks like an error relating to precision.

This could potentially be an issue with the compiled yaml and yaml-dev packages used when compiling the Yaml PHP extension. I will verify against a different operation system (Debian).

Any one else hitting this failure?