Setup
Windows 7 professional SP1, 64-bit, 3Gb RAM
PHP 5.4.25
Apache 2.2.25
MySQL 5.6.13
Steps to reproduce:
Check out latest HEAD (28 May 2014)
Create an empty MySQL database using phpMyAdmin
Visit localhost/drupal to start installation
Accept default language (English)
Choose either Minimal or Standard install
Specify database name, user and password
Expected outcome
Installation of current Drupal 8
Actual outcome
Either
Error very early on:An AJAX HTTP error occurred. HTTP Result Code: 200 Debugging information follows. Path: http://localhost/drupal/core/install.php?langcode=en&profile=standard&id=1&op=do_nojs&op=do StatusText: OK ResponseText: Fatal error: Call to undefined method Drupal\field\Entity\FieldConfig::addDependencyTrait() in D:\webstuff\www\drupal\core\lib\Drupal\Core\Config\Entity\ConfigEntityBase.php on line 348
Or
Drupal starts to install modules.
It gets to step where module name is not shown on "Installing Drupal" screen - step 7 of 10 for Minimal installation or step 26 of 38 for Standard installation - and seems to get stuck.
At this point it appears to get into an endless loop - or at least I have left it for upwards of half an hour and nothing further happens. Investigating what is running using ProcessExplorer, I see that Apache (httpd.exe) is being stopped and restarted every few seconds.
As far as I can tell, it is entirely random which of these outcomes I get. This is recent, it installed fine around a week or so ago!